[Qemu-devel] [RFC/PATCH] Fix guest OS panic when 64bit BAR is present

2012-01-24 Thread Alexey Korolev
ons didn't initialize high part of 64bit BAR. The patch is tested on Linux 2.6.18 - 3.1.0 and Windows 2008 Server Signed-off-by: Alexey Korolev --- hw/pci.c | 45 + hw/pci.h |7 +++ 2 files changed, 52 insertions(+), 0 deletions(-) d

Re: [Qemu-devel] [RFC/PATCH] Fix guest OS panic when 64bit BAR is present

2012-01-25 Thread Alexey Korolev
Hi Alex and Michael >> For testing, I applied the following patch to qemu, >> converting msix bar to 64 bit. >> Guest did not seem to crash. >> I booted Fedora Live CD 32 bit guest on a 32 bit host >> to level 3 without crash, and verified that >> the BAR is a 64 bit one, and that I got assigned an

Re: [Qemu-devel] [RFC/PATCH] Fix guest OS panic when 64bit BAR is present

2012-01-25 Thread Alexey Korolev
On 26/01/12 01:51, Michael S. Tsirkin wrote: > On Wed, Jan 25, 2012 at 06:46:03PM +1300, Alexey Korolev wrote: >> Hi, >> In this post >> http://lists.gnu.org/archive/html/qemu-devel/2011-12/msg03171.html I've >> mentioned about the issues when 64Bit PCI BAR is pr

Re: [Qemu-devel] [RFC/PATCH] Fix guest OS panic when 64bit BAR is present

2012-01-26 Thread Alexey Korolev
On 27/01/12 03:36, Michael S. Tsirkin wrote: > On Thu, Jan 26, 2012 at 03:52:27PM +0200, Avi Kivity wrote: >> On 01/26/2012 11:14 AM, Michael S. Tsirkin wrote: >>> On Wed, Jan 25, 2012 at 06:46:03PM +1300, Alexey Korolev wrote: >>>> Hi, >>>> In this p

Re: [Qemu-devel] [RFC/PATCH] Fix guest OS panic when 64bit BAR is present

2012-01-26 Thread Alexey Korolev
On 27/01/12 04:12, Avi Kivity wrote: > On 01/26/2012 04:36 PM, Michael S. Tsirkin wrote: >> On Thu, Jan 26, 2012 at 03:52:27PM +0200, Avi Kivity wrote: >>> On 01/26/2012 11:14 AM, Michael S. Tsirkin wrote: >>>> On Wed, Jan 25, 2012 at 06:46:03PM +1300, Alexey Koro

Re: [Qemu-devel] [RFC/PATCH] Fix guest OS panic when 64bit BAR is present

2012-01-31 Thread Alexey Korolev
On 31/01/12 22:43, Avi Kivity wrote: > On 01/31/2012 11:40 AM, Avi Kivity wrote: >> On 01/27/2012 06:42 AM, Alexey Korolev wrote: >>> On 27/01/12 04:12, Avi Kivity wrote: >>>> On 01/26/2012 04:36 PM, Michael S. Tsirkin wrote: >>>>> On Thu, Jan 2

Re: [Qemu-devel] [RFC/PATCH] Fix guest OS panic when 64bit BAR is present

2012-02-01 Thread Alexey Korolev
On 01/02/12 20:04, Michael S. Tsirkin wrote: > On Wed, Feb 01, 2012 at 06:44:42PM +1300, Alexey Korolev wrote: >> On 31/01/12 22:43, Avi Kivity wrote: >>> On 01/31/2012 11:40 AM, Avi Kivity wrote: >>>> On 01/27/2012 06:42 AM, Alexey Korolev wrote: >>>

[Qemu-devel] [BUG] QEMU crashes when 64bit BAR is present

2012-12-04 Thread Alexey Korolev
Hi all, I had qemu 1.2.0 crash when using ivshmem driver with 64bit PCI support enabled. The qemu process is terminated at a very early stage of Linux boot up. Here is the qemu command line: LC_ALL=C PATH=/usr/kerberos/sbin:/usr/kerberos/bin:/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/u

Re: [Qemu-devel] [BUG] QEMU crashes when 64bit BAR is present

2012-12-05 Thread Alexey Korolev
Hi Gerd, > Hi, > >> And qemu error output is: >> qemu: /home/akorolev/qemu-kvm/exec.c:2255: register_subpage: Assertion >> `existing->mr->subpage || existing->mr == &io_mem_unassigned' failed. >> >> Guest OS is Centos 5.5 and log is pretty boring, as qemu crashes before >> Linux can report an i

Re: [Qemu-devel] [BUG] QEMU crashes when 64bit BAR is present

2012-12-05 Thread Alexey Korolev
On 06/12/12 09:23, Alexey Korolev wrote: > Hi Gerd, >> Hi, >> >>> And qemu error output is: >>> qemu: /home/akorolev/qemu-kvm/exec.c:2255: register_subpage: Assertion >>> `existing->mr->subpage || existing->mr == &io_mem_unassigned&#x

Re: [Qemu-devel] [BUG] QEMU crashes when 64bit BAR is present

2012-12-05 Thread Alexey Korolev
I tried the head today. Qemu crashes in the same way as before. > Hi, > >> And qemu error output is: >> qemu: /home/akorolev/qemu-kvm/exec.c:2255: register_subpage: Assertion >> `existing->mr->subpage || existing->mr == &io_mem_unassigned' failed. >> >> Guest OS is Centos 5.5 and log is pretty

Re: [Qemu-devel] [BUG] QEMU crashes when 64bit BAR is present

2012-12-06 Thread Alexey Korolev
On 06/12/12 20:45, Gerd Hoffmann wrote: > On 12/06/12 05:09, Alexey Korolev wrote: >> I tried the head today. >> Qemu crashes in the same way as before. > Hmm. Doesn't reproduce here (using RHEL-5 as guest, although it is 5.8 > so more recent than your centos 5.5). &g

Re: [Qemu-devel] [BUG] QEMU crashes when 64bit BAR is present

2012-12-09 Thread Alexey Korolev
Hi, >> It is a 64bit guest OS. >> I've upgraded to RHEL 5.8 and still have the same problem. > My rhel5 is 32bit. > >> Could you please send me a qemu command line you are running? > qemu-default -m 512 -hda /vmdisk/guests/rhel5.img -device > ivshmem,size=128M,shm=ivshmem.root Could you please set

Re: [Qemu-devel] [BUG] QEMU crashes when 64bit BAR is present

2012-12-12 Thread Alexey Korolev
On 10/12/12 20:22, Gerd Hoffmann wrote: > On 12/10/12 03:05, Alexey Korolev wrote: >> Hi, >>>> It is a 64bit guest OS. >>>> I've upgraded to RHEL 5.8 and still have the same problem. >>> My rhel5 is 32bit. >>> >>>> Could you ple

[Qemu-devel] [BUG] Guest OS hangs on boot when 64bit BAR present (kvm-apic -msi resource conflict)

2013-02-12 Thread Alexey Korolev
Sometime ago I reported an issue about guest OS hang when 64bit BAR present. http://lists.gnu.org/archive/html/qemu-devel/2012-01/msg03189.html http://lists.gnu.org/archive/html/qemu-devel/2012-12/msg00413.html Some more investigation has been done, so in this post I'll try to explain why it happ

[Qemu-devel] [PATCH] Fix guest OS hangs on boot when 64bit PCI BAR present

2013-02-12 Thread Alexey Korolev
rule that the regions which should not be overlapped are added to the view first (i.e. having highest priority). The patch also corrects ivshmem bar resource to be overlapable which is the default for PCI BARs Signed-off-by: Alexey Korolev --- hw/ivshmem.c |2 +- memory.c | 15

Re: [Qemu-devel] [BUG] Guest OS hangs on boot when 64bit BAR present (kvm-apic -msi resource conflict)

2013-02-13 Thread Alexey Korolev
> On Wed, Feb 13, 2013 at 11:34:52AM +0100, Jan Kiszka wrote: >> On 2013-02-13 11:24, Michael S. Tsirkin wrote: >>> On Wed, Feb 13, 2013 at 06:06:37PM +1300, Alexey Korolev wrote: >>>> Sometime ago I reported an issue about guest OS hang when 64bit BAR >>&

Re: [Qemu-devel] [PATCH] Fix guest OS hangs on boot when 64bit PCI BAR present

2013-02-13 Thread Alexey Korolev
On 13/02/13 23:26, Michael S. Tsirkin wrote: > On Wed, Feb 13, 2013 at 06:14:33PM +1300, Alexey Korolev wrote: >> At the moment may_overlap flag of MemoryRegion structure >> is ignored by the address range assignment process. >> This may lead to guest OS hangs if critical

[Qemu-devel] [PATCH 0/3] Remove may_overlap from MemoryRegion and use priorities instead

2013-02-18 Thread Alexey Korolev
priorities can take values 0,1,2 or even 1000. This patch removes these drawbacks and introduces a predefined set of priorities for MemoryRegion. This code does not affect the exisiting memory topology build process, so does not cause any issues related to change of regions visibility. Alexey

[Qemu-devel] [PATCH 2/3] Remove may_overlap flag from MemoryRegion structure

2013-02-18 Thread Alexey Korolev
have exclusive priority. Since may_overlap is abandoned, memory_region_add_subregion and memory_region_add_subregion_common become equvalent so memory_region_add_subregion_common is removed. Signed-off-by: Alexey Korolev --- include/exec/memory.h |1 - memory.c | 21

[Qemu-devel] [PATCH 1/3] Replacing memory_region_add_subregion_overlap

2013-02-18 Thread Alexey Korolev
optionally use memory_region_set_priority() to change priority from the default. This patch adds predefined priority values in memory.h. Priority can take one of 4 possible values: low (default), medium, high and exclusive (highest). Signed-off-by: Alexey Korolev --- hw/armv7m_nvic.c |4

[Qemu-devel] [PATCH 3/3] Docs update: Overlapping memory regions and priority

2013-02-18 Thread Alexey Korolev
Updated documentation about overlapping memory regions and priority to match the latest implementation. Signed-off-by: Alexey Korolev --- docs/memory.txt | 14 +++--- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/docs/memory.txt b/docs/memory.txt index 5bbee8e..37ebeb8

Re: [Qemu-devel] [PATCH for-1.4] pc: tag apic as overlap region

2013-02-21 Thread Alexey Korolev
On Wed, Feb 20, 2013 at 4:20 AM, Michael S. Tsirkin wrote: > apic overlaps PCI space. On real hardware it has > higher priority, emulate this correctly. > > This should addresses the following issue: > >> Subject: Re: [BUG] Guest OS hangs on boot when 64bit BAR present >> (kvm-apic-msi resource c

[Qemu-devel] [PATCH v2] Fix guest OS hang when 64bit PCI bar present

2013-02-21 Thread Alexey Korolev
-apic memory region, so it is never pushed out by PCI devices. The patch is quite safe as it does not touch memory manager. Signed-off-by: Alexey Korolev Signed-off-by: Michael S. Tsirkin --- hw/sysbus.c | 27 +++ hw/sysbus.h |2 ++ target-i386/cpu.c |3

Re: [Qemu-devel] [PATCH v2] Fix guest OS hang when 64bit PCI bar present

2013-02-24 Thread Alexey Korolev
Unfortunately I cannot even guess what is happening with kvm-apic-msi, or why it does not tolerate overlaps. This is actually a still open qestion. >> >> This patch raises the priority of the kvm-apic memory region, so it is >> never pushed out by PCI devices. The patch is quite safe a

[Qemu-devel] [Seabios] [PATCH 0/3] 64bit PCI BARs allocations

2011-12-27 Thread Alexey Korolev
Hi, There were a number of requests about support of 64bit PCI BAR allocations. Also we have observed the issue on guests with older linux version (2.6.18): if we have a 64bit BAR allocated within first 4GB, the OS may hang during start process. (I guess it is an OS bug, but we need to take c

[Qemu-devel] [PATCH 1/3] Add new range above 4GB in _CRS table

2011-12-27 Thread Alexey Korolev
x27;t mind. Signed-off-by: Alexey Korolev Signed-off-by: Michael S. Tsirkin --- src/acpi-dsdt.dsl |7 + src/acpi-dsdt.hex | 66 + src/config.h |2 + 3 files changed, 65 insertions(+), 10 deletions(-) diff --git a/src/acpi-dsdt

[Qemu-devel] [PATCH 2/3] Add a new PCI region type to supports 64 bit ranges

2011-12-27 Thread Alexey Korolev
ation, the bridges can describe 64bit ranges for prefetchable type of memory only. So it's very unlikely that devices exporting 64bit non-prefetchable BARs. Anyway this code will work with 64bit non-prefetchable BARs unless the PCI device is not behind the secondary bus. Signed-off-by:

[Qemu-devel] [PATCH 3/3] Changes related to secondary buses and 64bit regions

2011-12-27 Thread Alexey Korolev
-off-by: Alexey Korolev --- src/pciinit.c | 69 +++- 1 files changed, 48 insertions(+), 21 deletions(-) diff --git a/src/pciinit.c b/src/pciinit.c index a574e38..92942d5 100644 --- a/src/pciinit.c +++ b/src/pciinit.c @@ -17,6 +17,7 @@ #define

Re: [Qemu-devel] [SeaBIOS] [PATCH 3/3] Changes related to secondary buses and 64bit regions

2011-12-27 Thread Alexey Korolev
I hate thunderbird. Will resend the patches tomorrow. >+pci_config_writel(bdf, PCI_PREF_BASE_UPPER32, base>> 32);

Re: [Qemu-devel] [PATCH 2/3] Add a new PCI region type to supports 64 bit ranges

2011-12-28 Thread Alexey Korolev
On 29/12/11 00:30, Michael S. Tsirkin wrote: On Wed, Dec 28, 2011 at 06:26:05PM +1300, Alexey Korolev wrote: This patch adds PCI_REGION_TYPE_PREFMEM_64 region type and modifies types of variables to make it possible to work with 64 bit addresses. Why I've added just one region

Re: [Qemu-devel] [PATCH 2/3] Add a new PCI region type to supports 64 bit ranges

2011-12-28 Thread Alexey Korolev
On 29/12/11 15:56, Kevin O'Connor wrote: On Wed, Dec 28, 2011 at 06:26:05PM +1300, Alexey Korolev wrote: This patch adds PCI_REGION_TYPE_PREFMEM_64 region type and modifies types of variables to make it possible to work with 64 bit addresses. Why I've added just one r

Re: [Qemu-devel] [PATCH 2/3] Add a new PCI region type to supports 64 bit ranges

2011-12-28 Thread Alexey Korolev
@@ -69,6 +72,8 @@ static enum pci_region_type pci_addr_to_type(u32 addr) { if (addr& PCI_BASE_ADDRESS_SPACE_IO) return PCI_REGION_TYPE_IO; +if (addr& PCI_BASE_ADDRESS_MEM_TYPE_64) +return PCI_REGION_TYPE_PREFMEM_64; This seems dangerous - a 64bit bar can be non-p

Re: [Qemu-devel] [PATCH 3/3] Changes related to secondary buses and 64bit regions

2011-12-28 Thread Alexey Korolev
On 29/12/11 00:43, Michael S. Tsirkin wrote: On Wed, Dec 28, 2011 at 06:35:55PM +1300, Alexey Korolev wrote: All devices behind a bridge need to have all their regions consecutive and not overlapping with all the normal memory ranges. Since prefetchable memory is described by one record, we

Re: [Qemu-devel] [PATCH 3/3] Changes related to secondary buses and 64bit regions

2011-12-28 Thread Alexey Korolev
On 29/12/11 00:43, Michael S. Tsirkin wrote: On Wed, Dec 28, 2011 at 06:35:55PM +1300, Alexey Korolev wrote: All devices behind a bridge need to have all their regions consecutive and not overlapping with all the normal memory ranges. Since prefetchable memory is described by one record, we

Re: [Qemu-devel] [Seabios] [PATCH 0/3] 64bit PCI BARs allocations

2011-12-29 Thread Alexey Korolev
>> > Patches have been tested on several configurations which includes >> linux 2.6.18 - 3.0 & >> windows 2008. Everything works quite well. >Which qemu version did you use? I tried both 0.15 and 1.0

Re: [Qemu-devel] [Seabios] [PATCH 0/3] 64bit PCI BARs allocations

2011-12-29 Thread Alexey Korolev
On 30/12/11 05:21, Michael S. Tsirkin wrote: On Thu, Dec 29, 2011 at 09:20:00AM +, Alexey Korolev wrote: Patches have been tested on several configurations which includes linux 2.6.18 - 3.0& windows 2008. Everything works quite well. Which qemu version did you use? I tried both 0.15

Re: [Qemu-devel] [PATCH 3/3] Changes related to secondary buses and 64bit regions

2011-12-29 Thread Alexey Korolev
On 30/12/11 05:18, Michael S. Tsirkin wrote: On Thu, Dec 29, 2011 at 06:40:26PM +1300, Alexey Korolev wrote: On 29/12/11 00:43, Michael S. Tsirkin wrote: On Wed, Dec 28, 2011 at 06:35:55PM +1300, Alexey Korolev wrote: All devices behind a bridge need to have all their regions consecutive and

Re: [Qemu-devel] [PATCH 3/3] Changes related to secondary buses and 64bit regions

2011-12-29 Thread Alexey Korolev
On 30/12/11 05:21, Michael S. Tsirkin wrote: On Thu, Dec 29, 2011 at 06:41:36PM +1300, Alexey Korolev wrote: Can't figure this out. What does this do? Bios will panic if it founds prefmem BARs in both 32bit and 64bit areas. That's not good, it's a legal configuration. To b

Re: [Qemu-devel] [PATCH 3/3] Changes related to secondary buses and 64bit regions

2011-12-29 Thread Alexey Korolev
On 30/12/11 05:21, Michael S. Tsirkin wrote: On Thu, Dec 29, 2011 at 06:41:36PM +1300, Alexey Korolev wrote: Can't figure this out. What does this do? Bios will panic if it founds prefmem BARs in both 32bit and 64bit areas. That's not good, it's a legal configuration. To b

Re: [Qemu-devel] [PATCH 3/3] Changes related to secondary buses and 64bit regions

2011-12-29 Thread Alexey Korolev
>> >There are two main things we can do: >> >1. Make the 64 bit device only use the low 32 bit >> It was my first implementation. Unfortunately older versions of >> Linux (Like 2.6.18) hang during startup with this. >> As far as I remember it was qemu-0.15 so may be 1.0 have no such an >> issue.

[Qemu-devel] [PATCH 0/6] Redesign of pciinit.c (take 2)

2012-03-12 Thread Alexey Korolev
Hi, This patch series redesigns the existing pciinit.c code and introduces linked list operations. Changes are more about structures definitions rather than functionality. There are no more arrays of bases and counts in new implementation. The new implementation is based on dynamic allocation of p

[Qemu-devel] [PATCH 1/6] Add Linked list operations to util.h

2012-03-12 Thread Alexey Korolev
This linked list implementation is partially based on kernel code. So it should be quite stable :) Signed-off-by: Alexey Korolev --- src/util.h | 32 1 files changed, 32 insertions(+), 0 deletions(-) diff --git a/src/util.h b/src/util.h index 70d3c4c..d1002a9

[Qemu-devel] [PATCH 2/6] Redesign of pciinit.c (take 2)

2012-03-12 Thread Alexey Korolev
Added pci_region_entry structure and list operations to pciinit.c List is filled with entries during pci_check_devices. List is used just for printing space allocation if we were using lists. Next step will resource allocation using mapping functions. Signed-off-by: Alexey Korolev --- src

[Qemu-devel] [PATCH 3/6] Switch from array based approach to lists of pci_region_entries

2012-03-12 Thread Alexey Korolev
-by: Alexey Korolev --- src/pciinit.c | 106 + 1 files changed, 46 insertions(+), 60 deletions(-) diff --git a/src/pciinit.c b/src/pciinit.c index 2bf5473..f766a75 100644 --- a/src/pciinit.c +++ b/src/pciinit.c @@ -12,9 +12,8 @@ #include

[Qemu-devel] [PATCH 4/6] Delete array based resource assignment code.

2012-03-12 Thread Alexey Korolev
This patch deletes array based code need for resource assignment. The patches 3 and 4 are split just for better readability. Signed-off-by: Alexey Korolev --- src/pciinit.c | 109 + 1 files changed, 1 insertions(+), 108 deletions

[Qemu-devel] [PATCH 5/6] Get rid of size element of pci_bus->r structure

2012-03-12 Thread Alexey Korolev
The size element of pci_bus->r structure is no longer need as the information about bridge region size is stored in pci_region_entry structure. Signed-off-by: Alexey Korolev --- src/pciinit.c | 21 + 1 files changed, 9 insertions(+), 12 deletions(-) diff --git a/

[Qemu-devel] [PATCH 6/6] Use linked lists in pmm.c and stack.c

2012-03-12 Thread Alexey Korolev
This patch simplifies a bit complicated code in pmm.c and stack.c Signed-off-by: Alexey Korolev --- src/pmm.c| 29 + src/stacks.c |8 ++-- 2 files changed, 11 insertions(+), 26 deletions(-) diff --git a/src/pmm.c b/src/pmm.c index c649fd8..996981c

Re: [Qemu-devel] [PATCH 2/6] Redesign of pciinit.c (take 2)

2012-03-14 Thread Alexey Korolev
On 14/03/12 13:48, Kevin O'Connor wrote: > On Tue, Mar 13, 2012 at 05:45:19PM +1300, Alexey Korolev wrote: >> Added pci_region_entry structure and list operations to pciinit.c >> List is filled with entries during pci_check_devices. >> List is used just for printing s

Re: [Qemu-devel] [PATCH 2/6] Redesign of pciinit.c (take 2)

2012-03-19 Thread Alexey Korolev
On 16/03/12 13:55, Kevin O'Connor wrote: > On Thu, Mar 15, 2012 at 04:29:30PM +1300, Alexey Korolev wrote: >> On 14/03/12 13:48, Kevin O'Connor wrote: >>> On Tue, Mar 13, 2012 at 05:45:19PM +1300, Alexey Korolev wrote: >>>> Added pci_region_entry st

Re: [Qemu-devel] [PATCH] Fix typo in i400FX chipset init code

2012-03-20 Thread Alexey Korolev
> Hi, > > There is a typo in i440FX init code. This is causing problems when > somebody wants to access 64bit PCI range. > > > Signed-off-by: Alexey Korolev > --- > > hw/piix_pci.c |2 +- > 1 files changed, 1 insertions(+), 1 deletions(-) > > dif

Re: [Qemu-devel] [PATCH] Fix typo in i400FX chipset init code

2012-03-21 Thread Alexey Korolev
> On Wed, Feb 29, 2012 at 02:35:14PM +1300, Alexey Korolev wrote: > I've fixed the commit message and applied. Thank you! > How does one trigger the problem? > I'd like to know so I can test for it. The i440fx_init() function is called from pc_init code. The call lo

[Qemu-devel] [PATCH 0/4] Redesign of pciinit.c (take 3)

2012-03-27 Thread Alexey Korolev
Hi, This patch series redesigns the existing pciinit.c code and introduces linked list operations. Changes are more about structures definitions rather than functionality. There are no more arrays of bases and counts in new implementation. The new implementation is based on dynamic allocation of p

[Qemu-devel] [PATCH 1/4] Add basic linked list operations

2012-03-27 Thread Alexey Korolev
This linked list implementation is partially based on kernel code. So it should be quite stable Signed-off-by: Alexey Korolev --- src/util.h | 21 + 1 files changed, 21 insertions(+), 0 deletions(-) diff --git a/src/util.h b/src/util.h index 70d3c4c..17df3cf 100644 --- a

[Qemu-devel] [PATCH 2/4] Added a pci_region_entry structure

2012-03-27 Thread Alexey Korolev
In this patch the pci_region_entry structure is introduced. The pci_device->bars are removed. The information from pci_region_entry is used to program pci bars. Signed-off-by: Alexey Korolev --- src/pci.h |5 -- src/pciinit.c |

[Qemu-devel] [PATCH 3/4] Switch from array based resource allocation to list

2012-03-27 Thread Alexey Korolev
In this patch instead of array based resource allocation approach we calculate resource addresses linked lists of pci_region_entry structures. Signed-off-by: Alexey Korolev --- src/pciinit.c | 179 - 1 files changed, 50 insertions

[Qemu-devel] [PATCH 4/4] Get rid of size element of pci_bus->r structure

2012-03-27 Thread Alexey Korolev
The 'size' element of pci_bus->r structure is no longer need as the information about bridge region size is already stored in pci_region_entry structure. Signed-off-by: Alexey Korolev --- src/pciinit.c | 21 + 1 files changed, 9 insertions(+), 12 deletions(-)

Re: [Qemu-devel] [SeaBIOS] [PATCH 1/4] Add basic linked list operations

2012-03-28 Thread Alexey Korolev
>> This linked list implementation is partially based on kernel code. So it >> should be quite stable > How about just copying the file? > > I've used the linux kernel list implementation elsewhere too and it > worked just fine with only minor tweaks (remove some likely()/unlikely() > macros IIRC)

Re: [Qemu-devel] [PATCH 3/4] Switch from array based resource allocation to list

2012-04-02 Thread Alexey Korolev
Hi Kevin, Thank you for the patches! I've created a diff of final version of your changes over mine, to make it clear what has changed. Rather than including the complete diff, I've just left relevant parts and added comments. --- a/src/pciinit.c +++ b/src/pciinit.c@@ -12,8 +12,9 @@ @

Re: [Qemu-devel] [PATCH 3/4] Switch from array based resource allocation to list

2012-04-11 Thread Alexey Korolev
On 04/04/12 15:31, Kevin O'Connor wrote: > Agreed - the only thing it does is force a minimum size for memory bars as > you pointed out in a previous email. As above, I did play with > this a little more on Sunday. I also added in two patches from Gerd's series > and made alignment handling more

Re: [Qemu-devel] [PATCH 3/4] Switch from array based resource allocation to list

2012-04-11 Thread Alexey Korolev
On 12/04/12 15:15, Kevin O'Connor wrote: > > This was also me playing with one of Gerd's patches. It just makes > the bar read/write code 64bit aware. It doesn't actually program > them. The logic to do real 64bit allocations would require list > merging. Is this something you have looked at? R

Re: [Qemu-devel] [PATCH 3/4] Switch from array based resource allocation to list

2012-04-20 Thread Alexey Korolev
[...] >> [Patch 5] >> Track-alignment-explicitly >> Almost the same as the previous, just changed priority from r->align to >> r->sum when setting start address of root regions. >> >> I guess there are more chances to fit memory regions if we try place regions >> with higher r->sum like it was b

[Qemu-devel] [Patch 0/12] Pciinit redesign and 64bit PCI support

2012-04-23 Thread Alexey Korolev
06-pciinit-bridges-can-have-two-regions-too.patch 0007-pciinit-Switch-to-64bit-variable-types.patch Alexey Korolev (6): 0003-pciinit-Remove-size-element-from-pci_bus-r-structure.patch 0008-pciinit-Add-pci_region-structure.patch 0009-pciinit-64bit-capability-discovery-for-pci-bridges.patch 0010-Do-not

[Qemu-devel] [PATCH 01/12] pciinit: Introduction of pci_region_entry structure

2012-04-23 Thread Alexey Korolev
The pci_region_entry structure is introduced. The pci_device->bars are removed. The information from pci_region_entry is used to program pci bars. Signed-off-by: Alexey Korolev Signed-off-by: Kevin O'Connor --- src/pci.h |5 -- src/pciinit.

[Qemu-devel] [PATCH 02/12] pciinit: Move bus bar asignment

2012-04-23 Thread Alexey Korolev
Perform bus bar assignment at same time as normal bar assignment Signed-off-by: Kevin O'Connor Signed-off-by: Alexey Korolev --- src/pciinit.c | 53 ++--- 1 files changed, 18 insertions(+), 35 deletions(-) diff --git a/src/pciinit.c

[Qemu-devel] [PATCH 03/12] pciinit: Remove size element from pci_bus->r structure

2012-04-23 Thread Alexey Korolev
The 'size' element of pci_bus->r structure is no longer need as the information about bridge region size is already stored in pci_region_entry structure. Signed-off-by: Alexey Korolev Signed-off-by: Kevin O'Connor --- src/pciinit.c | 20 1 files cha

[Qemu-devel] [PATCH 04/12] pciinit: Use sorted order allocation

2012-04-23 Thread Alexey Korolev
Use sorted order allocation scheme instead of array based count scheme. Signed-off-by: Alexey Korolev Signed-off-by: Kevin O'Connor --- src/pciinit.c | 71 +--- 1 files changed, 7 insertions(+), 64 deletions(-) diff --git a/src/pciini

[Qemu-devel] [PATCH 05/12] pciinit: Track region alignment explicitly.

2012-04-23 Thread Alexey Korolev
Don't round up bridge regions to the next highest size - instead track alignment explicitly. This should improve the memory layout for bridge regions. Also, unused bridge regions will no longer be allocated any space. Signed-off-by: Kevin O'Connor --- src/pciinit.c | 41 ++---

[Qemu-devel] [PATCH 06/12] pciinit: bridges can have two regions too

2012-04-23 Thread Alexey Korolev
Patch takes into account PCI bar and ROM regions of PCI bridges Original patch by: Gerd Hoffmann Signed-off-by: Kevin O'Connor Signed-off-by: Alexey Korolev --- src/pci.h |1 + src/pciinit.c |8 +--- 2 files changed, 6 insertions(+), 3 deletions(-) diff --git a/src/pc

[Qemu-devel] [PATCH 07/12] pciinit: Switch to 64bit variable types.

2012-04-23 Thread Alexey Korolev
Switch to 64bit variable types. Add parsing 64bit bars. Original patch by: Gerd Hoffmann Signed-off-by: Kevin O'Connor --- src/pciinit.c | 116 ++--- 1 files changed, 61 insertions(+), 55 deletions(-) diff --git a/src/pciinit.c b/src/pciini

[Qemu-devel] [PATCH 08/12] pciinit: Add pci_region structure.

2012-04-23 Thread Alexey Korolev
The pci_region structure is added. Move setting of bus base address to pci_region_map_entries. Signed-off-by: Alexey Korolev --- src/pciinit.c | 50 -- 1 files changed, 28 insertions(+), 22 deletions(-) diff --git a/src/pciinit.c b/src

[Qemu-devel] [PATCH 09/12] pciinit: 64bit capability discovery for pci bridges

2012-04-23 Thread Alexey Korolev
Add discovery if bridge region is 64bit is capable. Signed-off-by: Alexey Korolev --- src/pciinit.c | 26 +- 1 files changed, 25 insertions(+), 1 deletions(-) diff --git a/src/pciinit.c b/src/pciinit.c index f185cbd..0d66dbe 100644 --- a/src/pciinit.c +++ b/src

[Qemu-devel] [PATCH 10/12] Calculate pci region stats on demand

2012-04-23 Thread Alexey Korolev
Do not store pci region stats - instead calulate the sum and alignment on demand. Signed-off-by: Alexey Korolev --- src/pciinit.c | 57 +++-- 1 files changed, 35 insertions(+), 22 deletions(-) diff --git a/src/pciinit.c b/src/pciinit.c

[Qemu-devel] [PATCH 10/12] Calculate pci region stats on demand

2012-04-23 Thread Alexey Korolev
Do not store pci region stats - instead calulate the sum and alignment on demand. Signed-off-by: Alexey Korolev --- src/pciinit.c | 57 +++-- 1 files changed, 35 insertions(+), 22 deletions(-) diff --git a/src/pciinit.c b/src/pciinit.c

[Qemu-devel] [PATCH 11/12] Migrate 64bit entries to 64bit pci regions

2012-04-23 Thread Alexey Korolev
Migrate 64bit entries to 64bit pci regions if they do not fit in 32bit range. Signed-off-by: Alexey Korolev --- src/config.h |2 ++ src/pciinit.c | 50 ++ 2 files changed, 48 insertions(+), 4 deletions(-) diff --git a/src/config.h b/src

[Qemu-devel] [PATCH 12/12] Fix 64bit PCI issues on Windows

2012-04-23 Thread Alexey Korolev
This patch solves issues on Windows guests, when 64bit BAR's are present. It is also helpful on Linux guests when use_crs kernel boot option is set. Signed-off-by: Alexey Korolev Signed-off-by: Michael S. Tsirkin --- src/acpi-dsdt.dsl |7 + src/acpi-dsdt.hex |

Re: [Qemu-devel] [SeaBIOS] [PATCH 10/12] Calculate pci region stats on demand

2012-04-23 Thread Alexey Korolev
A flowed text. Please apply another [10/12] in this series. On Tue, 2012-04-24 at 18:23 +1200, Alexey Korolev wrote: > Do not store pci region stats - instead calulate the > sum and alignment on demand. > > Signed-off-by: Alexey Korolev > --- > sr

Re: [Qemu-devel] [SeaBIOS] [PATCH 05/12] pciinit: Track region alignment explicitly.

2012-04-24 Thread Alexey Korolev
On 24/04/12 18:56, Gerd Hoffmann wrote: > On 04/24/12 08:17, Alexey Korolev wrote: >> Don't round up bridge regions to the next highest size - instead track >> alignment explicitly. This should improve the memory layout for >> bridge regions. > This one got mangl

Re: [Qemu-devel] [PATCH 11/12] Migrate 64bit entries to 64bit pci regions

2012-04-24 Thread Alexey Korolev
On 25/04/12 13:48, Kevin O'Connor wrote: > On Tue, Apr 24, 2012 at 06:25:39PM +1200, Alexey Korolev wrote: >> Migrate 64bit entries to 64bit pci regions if they do >> not fit in 32bit range. > [...] >> +static void pci_region_migrate_64bit_en

[Qemu-devel] [PATCH] Fix typo in i400FX chipset init code

2012-02-28 Thread Alexey Korolev
Hi, There is a typo in i440FX init code. This is causing problems when somebody wants to access 64bit PCI range. Signed-off-by: Alexey Korolev --- hw/piix_pci.c |2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/hw/piix_pci.c b/hw/piix_pci.c index 3ed3d90..aab8188

[Qemu-devel] [Seabios] [PATCH 0/6] 64bit PCI BARs allocations (take 2)

2012-02-29 Thread Alexey Korolev
Hi, This patch series enables 64bit BAR support in seabios. It has a bit different approach for resources accounting, We did this because we wanted: a) Provide 64bit bar support for PCI BARs and bridges with 64bit memory window. b) Allow migration to 64bit bit ranges if we did not fit into 32bit

[Qemu-devel] [Seabios] [PATCH 1/6] Adding new structures

2012-02-29 Thread Alexey Korolev
build topology and migrate entries if necessary. Signed-off-by: Alexey Korolev --- src/pci.h |6 -- src/pciinit.c | 37 ++--- 2 files changed, 22 insertions(+), 21 deletions(-) diff --git a/src/pci.h b/src/pci.h index a2a5a4c..8fa064f 100644 --- a

[Qemu-devel] [PATCH 2/6] New service functions and ported old functions to 64bit

2012-02-29 Thread Alexey Korolev
: Alexey Korolev --- src/pciinit.c | 132 +++-- 1 files changed, 91 insertions(+), 41 deletions(-) diff --git a/src/pciinit.c b/src/pciinit.c index 2e5416c..dbfa4f2 100644 --- a/src/pciinit.c +++ b/src/pciinit.c @@ -51,33 +51,30 @@ struct

[Qemu-devel] [PATCH 3/6] Fill PCI regions with etnries

2012-02-29 Thread Alexey Korolev
pci_bios_fill_regions() scans pci_regions in reverse order to calculate size of pci_region_entries belonging to a bridge. Signed-off-by: Alexey Korolev --- src/pciinit.c | 103 ++--- 1 files changed, 98 insertions(+), 5 deletions(-) diff --git a

[Qemu-devel] [PATCH 4/6] Mapping of BARs and Bridge regions

2012-02-29 Thread Alexey Korolev
provides a pci_region for downstream devices, we set base address of the region the entry provides. 3. Delete entry. Signed-off-by: Alexey Korolev --- src/config.h |2 + src/pciinit.c | 123 - 2 files changed, 124 insertions(+), 1

[Qemu-devel] [PATCH 5/6] Delete old code

2012-02-29 Thread Alexey Korolev
Delete old code. Signed-off-by: Alexey Korolev --- src/pciinit.c | 212 - 1 files changed, 0 insertions(+), 212 deletions(-) diff --git a/src/pciinit.c b/src/pciinit.c index 0fba130..9c41e3c 100644 --- a/src/pciinit.c +++ b/src/pciinit.c

[Qemu-devel] [PATCH 6/6] 64bit PCI range in _CRS table

2012-02-29 Thread Alexey Korolev
This patch was originally proposed by Michael, to solve issues I've seen on Windows guests, when 64bit BAR's are present. This patch also might be helpful on Linux guests when use_crs kernel boot option is set. Signed-off-by: Alexey Korolev Signed-off-by: Michael S. Tsirkin ---

Re: [Qemu-devel] [SeaBIOS] [Seabios] [PATCH 0/6] 64bit PCI BARs allocations (take 2)

2012-03-01 Thread Alexey Korolev
Hi, What is your setup? I want to reproduce this case >> a) Provide 64bit bar support for PCI BARs and bridges with 64bit memory >> window. > Bridge support seems to be completely untested. /me has a test setup > using mst's bridge patches which looks like this: > > [root@fedora ~]# lspci -tv > -[

Re: [Qemu-devel] [SeaBIOS] [PATCH 4/6] Mapping of BARs and Bridge regions

2012-03-01 Thread Alexey Korolev
On 01/03/12 22:22, Gerd Hoffmann wrote: > On 03/01/12 07:57, Alexey Korolev wrote: >> In pci_bios_map_regions() we try to reserve memory for >> all entries of root bus regions. >> If pci_bios_init_root_regions() fails - e.g no enough space, we create two >> new pci_

Re: [Qemu-devel] [SeaBIOS] [PATCH 4/6] Mapping of BARs and Bridge regions

2012-03-04 Thread Alexey Korolev
On 02/03/12 20:21, Gerd Hoffmann wrote: > On 03/01/12 23:01, Alexey Korolev wrote: >> On 01/03/12 22:22, Gerd Hoffmann wrote: >>> On 03/01/12 07:57, Alexey Korolev wrote: >>>> In pci_bios_map_regions() we try to reserve memory for >>>>

Re: [Qemu-devel] [SeaBIOS] [Seabios] [PATCH 0/6] 64bit PCI BARs allocations (take 2)

2012-03-04 Thread Alexey Korolev
On 03/01/12 22:48, Alexey Korolev wrote: >> Hi, >> What is your setup? >> I want to reproduce this case > qemu: latest master with a few patches (mst's bridge patches, pci64 > fixes from me, posted to qemu-devel a few days ago), bundle pushed to > http://www.kraxe

Re: [Qemu-devel] [Seabios] [PATCH 0/6] 64bit PCI BARs allocations (take 2)

2012-03-04 Thread Alexey Korolev
> On Thu, Mar 01, 2012 at 06:50:43PM +1300, Alexey Korolev wrote: >> Hi, >> >> This patch series enables 64bit BAR support in seabios. >> It has a bit different approach for resources accounting, We did this >> because we wanted: >> a) Provide 64bit ba

Re: [Qemu-devel] [SeaBIOS] [Seabios] [PATCH 0/6] 64bit PCI BARs allocations (take 2)

2012-03-05 Thread Alexey Korolev
On 05/03/12 23:12, Gerd Hoffmann wrote: > Hi, > >> I can either send a patch over existing patches, or send new series or both. > For testing a incremental patch is fine, for merge a new series with the > fixes squashed into the buggy patches is needed. > > cheers, > Gerd Sure. Here are the hot

Re: [Qemu-devel] [SeaBIOS] [Seabios] [PATCH 0/6] 64bit PCI BARs allocations (take 2)

2012-03-05 Thread Alexey Korolev
On 06/03/12 02:49, Kevin O'Connor wrote: > On Mon, Mar 05, 2012 at 10:53:25AM +0100, Gerd Hoffmann wrote: >>> Given the churn in this area, I don't want to commit patches that do >>> wholesale code replacement. I'd prefer to see each patch >>> independently add some functionality and perform its r

[Qemu-devel] [PATCH 0/3] Redesign of pciinit.c

2012-03-08 Thread Alexey Korolev
Hi, This patch series redesigns the existing pciinit.c code and introduces linked list operations. Changes are more about structures definitions rather than functionality. There are no more arrays of bases and counts in new implementation. The new implementation is based on dynamic allocation of p

[Qemu-devel] [PATCH 1/3] Linked list operations

2012-03-08 Thread Alexey Korolev
This linked list implementation is partially based on kernel code. So it should be quite stable :) Signed-off-by: Alexey Korolev --- src/util.h | 32 1 files changed, 32 insertions(+), 0 deletions(-) diff --git a/src/util.h b/src/util.h index 70d3c4c

[Qemu-devel] [PATCH 2/3] Redesign of pciinit.c

2012-03-08 Thread Alexey Korolev
could keep code workable. I mean further patch splitting is not possible as there are too many references to pci_bus members. Signed-off-by: Alexey Korolev --- src/pci.h |6 -- src/pciinit.c | 266 ++--- 2 files changed, 120 insertions

[Qemu-devel] [PATCH 3/3] Use linked list operations in pmm.c and stack.c

2012-03-08 Thread Alexey Korolev
Now let simplify a bit a cumbersome code in pmm.c and stack.c Signed-off-by: Alexey Korolev --- src/pmm.c| 29 + src/stacks.c |8 ++-- 2 files changed, 11 insertions(+), 26 deletions(-) diff --git a/src/pmm.c b/src/pmm.c index c649fd8..996981c 100644

Re: [Qemu-devel] [SeaBIOS] [PATCH 11/12] Migrate 64bit entries to 64bit pci regions

2012-04-29 Thread Alexey Korolev
On 27/04/12 00:45, Kevin O'Connor wrote: > On Wed, Apr 25, 2012 at 05:29:04PM +0200, Gerd Hoffmann wrote: >> Issue #1: seabios can't boot from a virtio-scsi disk if the controller >> is behind a pci bridge. I think the reason simply is that (according to >> the seabios log) only root bus pci devi

Re: [Qemu-devel] [SeaBIOS] [seabios patch 0/5] dynamic pci i/o windows

2012-05-06 Thread Alexey Korolev
Hi, Tried these patches today on Win2008 x64 guest with 64bit devices. I've got BSOD on boot. I guess windows don't like changes in _CRS. On 04/05/12 20:21, Gerd Hoffmann wrote: > Hi, > > This patch series makes the PCI I/O windows runtime-configurable via > qemu firmware config interface. Main

  1   2   >