On Sun, Mar 07, 2021 at 08:59:45PM +0300, Arseny Krasnov wrote:
This adds receive loop for SEQPACKET. It looks like receive loop for
STREAM, but there is a little bit difference:
1) It doesn't call notify callbacks.
2) It doesn't care about 'SO_SNDLOWAT' and 'SO_RCVLOWAT' values, because
there
On Sun, Mar 07, 2021 at 09:01:05PM +0300, Arseny Krasnov wrote:
This replaces 'stream' to 'connection oriented' in comments as
SEQPACKET is also connection oriented.
Signed-off-by: Arseny Krasnov
---
net/vmw_vsock/af_vsock.c | 31 +--
1 file changed, 17
On Sun, Mar 07, 2021 at 09:00:47PM +0300, Arseny Krasnov wrote:
This does rest of SOCK_SEQPACKET support:
1) Adds socket ops for SEQPACKET type.
2) Allows to create socket with SEQPACKET type.
Signed-off-by: Arseny Krasnov
---
include/net/af_vsock.h | 1 +
net/vmw_vsock/af_vsock.c | 36
vhost_reset_is_le() is vhost_init_is_le(), and in the case of
cross-endian legacy, vhost_init_is_le() depends on vq->user_be.
vq->user_be is set by vhost_disable_cross_endian().
But in vhost_vq_reset(), we have:
vhost_reset_is_le(vq);
vhost_disable_cross_endian(vq);
And so user_be is
On Sun, Mar 07, 2021 at 08:59:45PM +0300, Arseny Krasnov wrote:
This adds receive loop for SEQPACKET. It looks like receive loop for
STREAM, but there is a little bit difference:
1) It doesn't call notify callbacks.
2) It doesn't care about 'SO_SNDLOWAT' and 'SO_RCVLOWAT' values, because
there
On Sun, Mar 07, 2021 at 09:01:44PM +0300, Arseny Krasnov wrote:
This function is static and 'hdr' arg was always NULL.
Signed-off-by: Arseny Krasnov
---
net/vmw_vsock/virtio_transport_common.c | 7 +++
1 file changed, 3 insertions(+), 4 deletions(-)
Reviewed-by: Stefano Garzarella
On Sun, Mar 07, 2021 at 08:59:01PM +0300, Arseny Krasnov wrote:
This moves wait loop for data to dedicated function, because later it
will be used by SEQPACKET data receive loop. While moving the code
around, let's update an old comment.
Signed-off-by: Arseny Krasnov
---
On Sun, Mar 07, 2021 at 09:00:26PM +0300, Arseny Krasnov wrote:
This adds some logic to current stream enqueue function for SEQPACKET
support:
1) Use transport's seqpacket enqueue callback.
2) Return value from enqueue function is whole record length or error
for SOCK_SEQPACKET.
On Sun, Mar 07, 2021 at 09:01:22PM +0300, Arseny Krasnov wrote:
This moves passing type of packet from 'info' structure to 'virtio_
transport_send_pkt_info()' function. There is no need to set type of
packet which differs from type of socket. Since at current time only
stream type is supported,
On 2021-03-11 08:26, Christoph Hellwig wrote:
On Wed, Mar 10, 2021 at 06:39:57PM +, Robin Murphy wrote:
Actually... Just mirroring the iommu_dma_strict value into
struct iommu_domain should solve all of that with very little
boilerplate code.
Yes, my initial thought was to directly
On Sun, Mar 07, 2021 at 08:58:39PM +0300, Arseny Krasnov wrote:
This prepares af_vsock.c for SEQPACKET support: some functions such
as setsockopt(), getsockopt(), connect(), recvmsg(), sendmsg() are
shared between both types of sockets, so rename them in general
manner.
Signed-off-by: Arseny
On Sun, Mar 07, 2021 at 09:02:31PM +0300, Arseny Krasnov wrote:
This adds transport callback which tries to fetch record begin marker
from socket's rx queue. It is called from af_vsock.c before reading data
packets of record.
Signed-off-by: Arseny Krasnov
---
include/linux/virtio_vsock.h
On 2021/3/12 16:11, Viresh Kumar wrote:
On 12-03-21, 15:51, Jie Deng wrote:
On 2021/3/12 14:10, Viresh Kumar wrote:
I saw your email about wrong version being sent, I already wrote some
reviews. Sending them anyway for FWIW :)
On 12-03-21, 21:33, Jie Deng wrote:
+struct virtio_i2c {
+
On Fri, Mar 12, 2021 at 2:33 PM Jie Deng wrote:
> +
> +/**
> + * struct virtio_i2c_req - the virtio I2C request structure
> + * @out_hdr: the OUT header of the virtio I2C message
> + * @buf: the buffer into which data is read, or from which it's written
> + * @in_hdr: the IN header of the virtio
On 2021/3/12 2:18 上午, Randy Dunlap wrote:
On 3/10/21 9:14 PM, Stephen Rothwell wrote:
Hi all,
Warning: Some of the branches in linux-next are still based on v5.12-rc1,
so please be careful if you are trying to bisect a bug.
News: if your -next included tree is based on Linus' tree tag
From: Joerg Roedel
Disable the exception handling before booting the kernel to make sure
any exceptions that happen during early kernel boot are not directed to
the pre-decompression code.
Signed-off-by: Joerg Roedel
---
arch/x86/boot/compressed/idt_64.c | 14 ++
From: Joerg Roedel
Exception handling in the startup_32 boot path requires the CS
selector to be correctly set up. Reload it from the current GDT.
Signed-off-by: Joerg Roedel
---
arch/x86/boot/compressed/head_64.S | 9 -
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git
From: Joerg Roedel
The 32-bit #VC handler has no GHCB and can only handle CPUID exit codes.
It is needed by the early boot code to handle #VC exceptions raised in
verify_cpu() and to get the position of the C bit.
But the CPUID information comes from the hypervisor, which is untrusted
and might
From: Joerg Roedel
Hi,
these patches add support for the 32-bit boot in the decompressor
code. This is needed to boot an SEV-ES guest on some firmware and grub
versions. The patches also add the necessary CPUID sanity checks and a
32-bit version of the C-bit check.
Other updates included here:
From: Joerg Roedel
A malicious hypervisor could disable the CPUID intercept for an SEV or
SEV-ES guest and trick it into the no-SEV boot path, where it could
potentially reveal secrets. This is not an issue for SEV-SNP guests,
as the CPUID intercept can't be disabled for those.
Remove the
From: Joerg Roedel
Add a #VC exception handler which is used when the kernel still executes
in protected mode. This boot-path already uses CPUID, which will cause #VC
exceptions in an SEV-ES guest.
Signed-off-by: Joerg Roedel
---
arch/x86/boot/compressed/head_64.S | 6 ++
From: Joerg Roedel
Check whether the hypervisor reported the correct C-bit when running as
an SEV guest. Using a wrong C-bit position could be used to leak
sensitive data from the guest to the hypervisor.
Signed-off-by: Joerg Roedel
---
arch/x86/boot/compressed/head_64.S | 83
From: Joerg Roedel
This boot path needs exception handling when it is used with SEV-ES.
Setup an IDT and provide a helper function to write IDT entries for
use in 32-bit protected mode.
Signed-off-by: Joerg Roedel
---
arch/x86/boot/compressed/head_64.S | 72 ++
1
From: Joerg Roedel
There are a few places left in the SEV-ES C code where hlt loops and/or
terminate requests are implemented. Replace them all with calls to
sev_es_terminate().
Signed-off-by: Joerg Roedel
---
arch/x86/boot/compressed/sev-es.c | 12 +++-
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