Re: [edk2] [PATCH v2 1/1] OvmfPkg/BaseMemEncryptSevLib: Enable protection for newly added page table

2018-01-15 Thread Brijesh Singh
On 1/15/18 2:28 PM, Laszlo Ersek wrote: > Sorry about the delay -- it was delivered to my mailbox late in the > evening on last Thursday, and on Friday I was out-of-office. Today there > has been some catching up with accumulated email... No worries, thank you so much.

Re: [edk2] [PATCH v2 1/1] OvmfPkg/BaseMemEncryptSevLib: Enable protection for newly added page table

2018-01-15 Thread Laszlo Ersek
On 01/11/18 20:51, Brijesh Singh wrote: > Commit 2ac1730bf2a5 (MdeModulePkg/DxeIpl: Mark page table as read-only) > sets the memory pages used for page table as read-only after paging is > setup and sets CR0.WP to protect CPU modifying the read-only pages. > The commit causes #PF when

[edk2] [PATCH v2 1/1] OvmfPkg/BaseMemEncryptSevLib: Enable protection for newly added page table

2018-01-11 Thread Brijesh Singh
Commit 2ac1730bf2a5 (MdeModulePkg/DxeIpl: Mark page table as read-only) sets the memory pages used for page table as read-only after paging is setup and sets CR0.WP to protect CPU modifying the read-only pages. The commit causes #PF when MemEncryptSevClearPageEncMask() or