diff options
Diffstat (limited to 'main/xen/xsa377.patch')
| -rw-r--r-- | main/xen/xsa377.patch | 27 |
1 files changed, 0 insertions, 27 deletions
diff --git a/main/xen/xsa377.patch b/main/xen/xsa377.patch deleted file mode 100644 index 1a1887b60e0..00000000000 --- a/main/xen/xsa377.patch +++ /dev/null @@ -1,27 +0,0 @@ -From: Andrew Cooper <andrew.cooper3@citrix.com> -Subject: x86/spec-ctrl: Mitigate TAA after S3 resume - -The user chosen setting for MSR_TSX_CTRL needs restoring after S3. - -All APs get the correct setting via start_secondary(), but the BSP was missed -out. - -This is XSA-377 / CVE-2021-28690. - -Fixes: 8c4330818f6 ("x86/spec-ctrl: Mitigate the TSX Asynchronous Abort sidechannel") -Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com> -Reviewed-by: Jan Beulich <jbeulich@suse.com> - -diff --git a/xen/arch/x86/acpi/power.c b/xen/arch/x86/acpi/power.c -index 91a8c4d0bd..31a56f02d0 100644 ---- a/xen/arch/x86/acpi/power.c -+++ b/xen/arch/x86/acpi/power.c -@@ -288,6 +288,8 @@ static int enter_state(u32 state) - - microcode_update_one(); - -+ tsx_init(); /* Needs microcode. May change HLE/RTM feature bits. */ -+ - if ( !recheck_cpu_features(0) ) - panic("Missing previously available feature(s)\n"); - |