On 06.12.23 12:08, Borislav Petkov wrote:
On Wed, Nov 29, 2023 at 02:33:31PM +0100, Juergen Gross wrote:Instead of stacking alternative and paravirt patching, use the new ALT_FLAG_CALL flag to switch those mixed calls to pure alternative handling. This eliminates the need to be careful regarding the sequence of alternative and paravirt patching. Signed-off-by: Juergen Gross <jgross@xxxxxxxx> Acked-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx> --- V5: - remove no longer needed extern declarations from alternative.c (Boris Petkov) - add comment about ALTERNATIVE[_2]() macro usage (Boris Petkov) - rebase to tip/master (Boris Petkov) --- arch/x86/include/asm/alternative.h | 5 ++-- arch/x86/include/asm/paravirt.h | 9 ++++-- arch/x86/include/asm/paravirt_types.h | 40 +++++++++++++++------------ arch/x86/kernel/alternative.c | 1 - arch/x86/kernel/callthunks.c | 17 ++++++------ arch/x86/kernel/module.c | 20 ++++---------- 6 files changed, 44 insertions(+), 48 deletions(-)After this one: (.config is attached).
... Ouch. Took me a while to find it. Patch 5 was repairing the issue again, and I tested more thoroughly only with all 5 patches applied. Juergen
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