Displaying 3 results from an estimated 3 matches for "qemuflashptrwrite".
2020 Sep 09
0
[PATCH v7 71/72] x86/efi: Add GHCB mappings when SEV-ES is active
...t the commit message in a NAE /
#VC context in any way; see above.)
OK, so let's see where the firmware performs a VMGEXIT *outside* of an
exception handler, *while* at OS runtime. There seems to be one, in file
"OvmfPkg/QemuFlashFvbServicesRuntimeDxe/QemuFlashDxe.c":
> VOID
> QemuFlashPtrWrite (
> IN volatile UINT8 *Ptr,
> IN UINT8 Value
> )
> {
> if (MemEncryptSevEsIsEnabled ()) {
> MSR_SEV_ES_GHCB_REGISTER Msr;
> GHCB *Ghcb;
>
> Msr.GhcbPhysicalAddress = AsmReadMsr64 (MSR_SEV_ES_GHCB);
>...
2020 Sep 07
84
[PATCH v7 00/72] x86: SEV-ES Guest Support
From: Joerg Roedel <jroedel at suse.de>
Hi,
here is a new version of the SEV-ES Guest Support patches for x86. The
previous versions can be found as a linked list starting here:
https://lore.kernel.org/lkml/20200824085511.7553-1-joro at 8bytes.org/
I updated the patch-set based on ther review comments I got and the
discussions around it.
Another important change is that the early IDT
2020 Sep 07
84
[PATCH v7 00/72] x86: SEV-ES Guest Support
From: Joerg Roedel <jroedel at suse.de>
Hi,
here is a new version of the SEV-ES Guest Support patches for x86. The
previous versions can be found as a linked list starting here:
https://lore.kernel.org/lkml/20200824085511.7553-1-joro at 8bytes.org/
I updated the patch-set based on ther review comments I got and the
discussions around it.
Another important change is that the early IDT