From 74978391b2da0116b9109d52931f342118d5a122 Mon Sep 17 00:00:00 2001 From: Pawan Gupta Date: Mon, 12 May 2025 10:26:04 -0700 Subject: [PATCH] target/i386: Make ITS_NO available to guests When a system is not affected by Indirect Target Selection (ITS) vulnerability, VMMs set ITS_NO bit in MSR IA32_ARCH_CAPABILITIES to let the guest know that it is not affected. Make it available to guests. Signed-off-by: Pawan Gupta Link: https://lore.kernel.org/r/8c1797e488b42650f62d816f25c58726eb522fad.1745946029.git.pawan.kumar.gupta@linux.intel.com Signed-off-by: Paolo Bonzini --- target/i386/cpu.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/target/i386/cpu.c b/target/i386/cpu.c index 1656de3dcc..ec908d7d36 100644 --- a/target/i386/cpu.c +++ b/target/i386/cpu.c @@ -1383,6 +1383,14 @@ FeatureWordInfo feature_word_info[FEATURE_WORDS] = { "bhi-no", NULL, NULL, NULL, "pbrsb-no", NULL, "gds-no", "rfds-no", "rfds-clear", NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, + NULL, NULL, "its-no", NULL, }, .msr = { .index = MSR_IA32_ARCH_CAPABILITIES, -- 2.39.5