diff options
Diffstat (limited to '0028-x86emul-add-memory-operand-low-bits-checks-for-ENQCM.patch')
| -rw-r--r-- | 0028-x86emul-add-memory-operand-low-bits-checks-for-ENQCM.patch | 45 |
1 files changed, 0 insertions, 45 deletions
diff --git a/0028-x86emul-add-memory-operand-low-bits-checks-for-ENQCM.patch b/0028-x86emul-add-memory-operand-low-bits-checks-for-ENQCM.patch deleted file mode 100644 index 1a63be4..0000000 --- a/0028-x86emul-add-memory-operand-low-bits-checks-for-ENQCM.patch +++ /dev/null @@ -1,45 +0,0 @@ -From 4799a202a9017360708c18aa8cd699bd8d6be08b Mon Sep 17 00:00:00 2001 -From: Jan Beulich <jbeulich@suse.com> -Date: Wed, 27 Jul 2022 09:31:01 +0200 -Subject: [PATCH 028/126] x86emul: add memory operand low bits checks for - ENQCMD{,S} - -Already ISE rev 044 added text to this effect; rev 045 further dropped -leftover earlier text indicating the contrary: -- ENQCMD requires the low 32 bits of the memory operand to be clear, -- ENDCMDS requires bits 20...30 of the memory operand to be clear. - -Fixes: d27385968741 ("x86emul: support ENQCMD insns") -Signed-off-by: Jan Beulich <jbeulich@suse.com> -Acked-by: Andrew Cooper <andrew.cooper3@citrix.com> -master commit: d620c66bdbe5510c3bae89be8cc7ca9a2a6cbaba -master date: 2022-07-20 15:46:48 +0200 ---- - xen/arch/x86/x86_emulate/x86_emulate.c | 4 +++- - 1 file changed, 3 insertions(+), 1 deletion(-) - -diff --git a/xen/arch/x86/x86_emulate/x86_emulate.c b/xen/arch/x86/x86_emulate/x86_emulate.c -index 5e297f797187..247c14dc4e68 100644 ---- a/xen/arch/x86/x86_emulate/x86_emulate.c -+++ b/xen/arch/x86/x86_emulate/x86_emulate.c -@@ -10464,6 +10464,7 @@ x86_emulate( - goto done; - if ( vex.pfx == vex_f2 ) /* enqcmd */ - { -+ generate_exception_if(mmvalp->data32[0], EXC_GP, 0); - fail_if(!ops->read_msr); - if ( (rc = ops->read_msr(MSR_PASID, &msr_val, - ctxt)) != X86EMUL_OKAY ) -@@ -10471,7 +10472,8 @@ x86_emulate( - generate_exception_if(!(msr_val & PASID_VALID), EXC_GP, 0); - mmvalp->data32[0] = MASK_EXTR(msr_val, PASID_PASID_MASK); - } -- mmvalp->data32[0] &= ~0x7ff00000; -+ else -+ generate_exception_if(mmvalp->data32[0] & 0x7ff00000, EXC_GP, 0); - state->blk = blk_enqcmd; - if ( (rc = ops->blk(x86_seg_es, src.val, mmvalp, 64, &_regs.eflags, - state, ctxt)) != X86EMUL_OKAY ) --- -2.37.4 - |