On Thu, Jun 04, 2020 at 07:59:33AM -0700, Sean Christopherson wrote:
> But SEV already broke it, no?
True, but with SEV-ES is can be fixed again, and all SEV hardware also
supports SEV-ES.
Regards,
Joerg
On Thu, Jun 04, 2020 at 12:15:02PM +0200, Joerg Roedel wrote:
> On Wed, Jun 03, 2020 at 04:07:16PM -0700, Sean Christopherson wrote:
> > On Wed, Jun 03, 2020 at 04:23:25PM +0200, Joerg Roedel wrote:
> > > User-space can also cause IOIO #VC exceptions, and user-space can be
> > > 32-bit legacy code
On Wed, Jun 03, 2020 at 04:07:16PM -0700, Sean Christopherson wrote:
> On Wed, Jun 03, 2020 at 04:23:25PM +0200, Joerg Roedel wrote:
> > User-space can also cause IOIO #VC exceptions, and user-space can be
> > 32-bit legacy code with segments, so es_base has to be taken into
> > account.
>
> Is
On Wed, Jun 03, 2020 at 04:23:25PM +0200, Joerg Roedel wrote:
> > > + */
> > > + io_bytes = (exit_info_1 >> 4) & 0x7;
> > > + ghcb_count = sizeof(ghcb->shared_buffer) / io_bytes;
> > > +
> > > + op_count= (exit_info_1 & IOIO_REP) ? regs->cx : 1;
> > > +
Hi Jean,
On Tue, May 19, 2020 at 11:20:55PM -0700, Sean Christopherson wrote:
> On Tue, Apr 28, 2020 at 05:16:35PM +0200, Joerg Roedel wrote:
> > + /*
> > +* For the string variants with rep prefix the amount of in/out
> > +* operations per #VC exception is
On Sat, May 16, 2020 at 09:57:14AM +0200, Borislav Petkov wrote:
> Just a reminder so that this doesn't get lost:
>
> On Tue, Apr 28, 2020 at 05:16:35PM +0200, Joerg Roedel wrote:
> > + if (exit_info_1 & IOIO_TYPE_STR) {
> > + int df = (regs->flags & X86_EFLAGS_DF) ? -1 : 1;
>
> ...
On Tue, Apr 28, 2020 at 05:16:35PM +0200, Joerg Roedel wrote:
> From: Tom Lendacky
>
> Add support for decoding and handling #VC exceptions for IOIO events.
>
> Signed-off-by: Tom Lendacky
> [ jroe...@suse.de: Adapted code to #VC handling framework ]
> Co-developed-by: Joerg Roedel
>
Just a reminder so that this doesn't get lost:
On Tue, Apr 28, 2020 at 05:16:35PM +0200, Joerg Roedel wrote:
> + if (exit_info_1 & IOIO_TYPE_STR) {
> + int df = (regs->flags & X86_EFLAGS_DF) ? -1 : 1;
...
> +
> + if (!(exit_info_1 & IOIO_TYPE_IN)) {
> +
On Tue, Apr 28, 2020 at 05:16:35PM +0200, Joerg Roedel wrote:
> From: Tom Lendacky
>
> Add support for decoding and handling #VC exceptions for IOIO events.
>
> Signed-off-by: Tom Lendacky
> [ jroe...@suse.de: Adapted code to #VC handling framework ]
> Co-developed-by: Joerg Roedel
>
From: Tom Lendacky
Add support for decoding and handling #VC exceptions for IOIO events.
Signed-off-by: Tom Lendacky
[ jroe...@suse.de: Adapted code to #VC handling framework ]
Co-developed-by: Joerg Roedel
Signed-off-by: Joerg Roedel
---
arch/x86/boot/compressed/sev-es.c | 32 +
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