Re: aarch64 efi boot failures with qemu 6.0+

On Tue, Jul 27, 2021 at 12:14:48PM +0200, Ard Biesheuvel wrote: > (+ Lorenzo) > > On Tue, 27 Jul 2021 at 12:07, Michael S. Tsirkin wrote: > > > > On Tue, Jul 27, 2021 at 11:50:23AM +0200, Ard Biesheuvel wrote: > > > On Tue, 27 Jul 2021 at 11:30, Michael S. Tsirkin wrote: > > > > > > > > On Tue,

Re: [PATCH v3 2/2] PCI: vmd: Use Shadow MEMBAR registers for QEMU/KVM guests

On Wed, May 27, 2020 at 11:02:40PM -0400, Jon Derrick wrote: > VMD device 28C0 natively assists guest passthrough of the VMD endpoint > through the use of shadow registers that provide Host Physical Addresses > to correctly assign bridge windows. These shadow registers are only > available if VMD

Re: [PATCH v3 1/2] PCI: vmd: Filter resource type bits from shadow register

On Thu, Jun 11, 2020 at 09:16:48PM +, Derrick, Jonathan wrote: [...] > > > > Hi Jon, > > > > > > > > it looks like I can take this patch for v5.8 whereas patch 2 depends > > > > on the QEMU changes acceptance and should probably wait. > > > > > > > > Please let me know your thoughts asap

Re: [PATCH v3 1/2] PCI: vmd: Filter resource type bits from shadow register

On Fri, May 29, 2020 at 03:53:37PM +, Derrick, Jonathan wrote: > On Fri, 2020-05-29 at 11:33 +0100, Lorenzo Pieralisi wrote: > > On Wed, May 27, 2020 at 11:02:39PM -0400, Jon Derrick wrote: > > > Versions of VMD with the Host Physical Address shadow register use t

Re: [PATCH v3 1/2] PCI: vmd: Filter resource type bits from shadow register

On Wed, May 27, 2020 at 11:02:39PM -0400, Jon Derrick wrote: > Versions of VMD with the Host Physical Address shadow register use this > register to calculate the bus address offset needed to do guest > passthrough of the domain. This register shadows the Host Physical > Address registers

Re: [Qemu-devel] [PATCH v2] arm64: kernel: fix architected PMU registers unconditional access

Hi Guenter, On Fri, Jan 22, 2016 at 06:17:49PM -0800, Guenter Roeck wrote: > On 01/13/2016 06:50 AM, Lorenzo Pieralisi wrote: > >The Performance Monitors extension is an optional feature of the > >AArch64 architecture, therefore, in order to access Performance > >Moni

[Qemu-devel] [PATCH v2] arm64: kernel: fix architected PMU registers unconditional access

ation and restore") Signed-off-by: Lorenzo Pieralisi <lorenzo.pieral...@arm.com> Reported-by: Guenter Roeck <li...@roeck-us.net> Tested-by: Guenter Roeck <li...@roeck-us.net> Cc: Will Deacon <will.dea...@arm.com> Cc: Peter Maydell <peter.mayd...@linaro.org> Cc: Ma

[Qemu-devel] [PATCH] arm64: kernel: fix PMUv3 registers unconditional access

implements a guard by reading the ID_AA64DFR0_EL1 register PMUVer field to detect the PMUv3 presence and prevent accessing PMUv3 system registers if the Performance Monitors extension is not implemented in the core. Signed-off-by: Lorenzo Pieralisi <lorenzo.pieral...@arm.com> Reported-by: Guenter Roe

Re: [Qemu-devel] [PATCH] arm64: kernel: fix PMUv3 registers unconditional access

field before accessing them. This patch implements a guard by reading the ID_AA64DFR0_EL1 register PMUVer field to detect the PMUv3 presence and prevent accessing PMUv3 system registers if the Performance Monitors extension is not implemented in the core. Signed-off-by: Lorenzo Pieralisi <lor

Re: [Qemu-devel] arm64 qemu tests failing in linux-next since 'arm64: kernel: enforce pmuserenr_el0 initialization and restore'

On Thu, Jan 07, 2016 at 01:25:35PM +, Peter Maydell wrote: > On 24 December 2015 at 00:52, Guenter Roeck wrote: > > Hi all, > > > > since commit 60792ad349f3 ("arm64: kernel: enforce pmuserenr_el0 > > initialization > > and restore"), my arm64 qemu tests of linux-next are

Re: [Qemu-devel] arm64 qemu tests failing in linux-next since 'arm64: kernel: enforce pmuserenr_el0 initialization and restore'

On Thu, Jan 07, 2016 at 03:58:15PM +, Peter Maydell wrote: > On 7 January 2016 at 15:53, Lorenzo Pieralisi <lorenzo.pieral...@arm.com> > wrote: > > On Thu, Jan 07, 2016 at 01:25:35PM +, Peter Maydell wrote: > >> We had previously been relying on the kernel n

Re: [Qemu-devel] arm64 qemu tests failing in linux-next since 'arm64: kernel: enforce pmuserenr_el0 initialization and restore'

Hi Guenter, On Wed, Dec 23, 2015 at 04:52:51PM -0800, Guenter Roeck wrote: > Hi all, > > since commit 60792ad349f3 ("arm64: kernel: enforce pmuserenr_el0 > initialization > and restore"), my arm64 qemu tests of linux-next are failing. After this > commit, > qemu does not display any output. >