Hi
Here are 3 small self-explanatory patches related to clearing TDX private
pages.
Patch 1 and 2 are minor tidy-ups.
In patch 3, by skipping the clearing step, shutdown time can improve by
up to 40%.
Changes in V7:
Add Rev'd-by, Ack'd-by tags
Changes in V6:
x86/tdx: Eliminate duplicate code in tdx_clear_page()
Add Sean's Ack
x86/tdx: Skip clearing reclaimed pages unless X86_BUG_TDX_PW_MCE is present
Add Xiaoyao's Rev'd-by
Changes in V5:
x86/tdx: Tidy reset_pamt functions
New patch
Changes in V4:
x86/tdx: Eliminate duplicate code in tdx_clear_page()
Add and use tdx_quirk_reset_page() for KVM (Sean)
x86/tdx: Skip clearing reclaimed pages unless X86_BUG_TDX_PW_MCE is present
Add TDX Module Base spec. version (Rick)
Add Rick's Rev'd-by
Changes in V3:
x86/tdx: Eliminate duplicate code in tdx_clear_page()
Explain "quirk" rename in commit message (Rick)
Explain mb() change in commit message (Rick)
Add Rev'd-by, Ack'd-by tags
x86/tdx: Skip clearing reclaimed pages unless X86_BUG_TDX_PW_MCE is present
Remove "flush cache" comments (Rick)
Update function comment to better relate to "quirk" naming (Rick)
Add "via MOVDIR64B" to comment (Xiaoyao)
Add Rev'd-by, Ack'd-by tags
Changes in V2 (as requested by Dave):
x86/tdx: Eliminate duplicate code in tdx_clear_page()
Rename reset_tdx_pages() to tdx_quirk_reset_paddr()
Call tdx_quirk_reset_paddr() directly
x86/tdx: Skip clearing reclaimed pages unless X86_BUG_TDX_PW_MCE is present
Improve the comment
Adrian Hunter (3):
x86/tdx: Eliminate duplicate code in tdx_clear_page()
x86/tdx: Tidy reset_pamt functions
x86/tdx: Skip clearing reclaimed pages unless X86_BUG_TDX_PW_MCE is present
arch/x86/include/asm/tdx.h | 2 ++
arch/x86/kvm/vmx/tdx.c | 25 +++----------------------
arch/x86/virt/vmx/tdx/tdx.c | 36 +++++++++++++++++++-----------------
3 files changed, 24 insertions(+), 39 deletions(-)
Regards
Adrian
