Merge tag 'mmc-v4.6' of git://git.linaro.org/people/ulf.hansson/mmc

[cascardo/linux.git] / arch / arm64 / kernel / cpufeature.c

diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c
index 392c67e..943f514 100644 (file)
--- a/arch/arm64/kernel/cpufeature.c
+++ b/arch/arm64/kernel/cpufeature.c
@@ -27,6 +27,7 @@
 #include <asm/mmu_context.h>
 #include <asm/processor.h>
 #include <asm/sysreg.h>
+#include <asm/virt.h>
 
 unsigned long elf_hwcap __read_mostly;
 EXPORT_SYMBOL_GPL(elf_hwcap);
@@ -659,6 +660,11 @@ static bool has_no_hw_prefetch(const struct arm64_cpu_capabilities *entry)
        return MIDR_IS_CPU_MODEL_RANGE(midr, MIDR_THUNDERX, rv_min, rv_max);
 }
 
+static bool runs_at_el2(const struct arm64_cpu_capabilities *entry)
+{
+       return is_kernel_in_hyp_mode();
+}
+
 static const struct arm64_cpu_capabilities arm64_features[] = {
        {
                .desc = "GIC system register CPU interface",
@@ -714,6 +720,11 @@ static const struct arm64_cpu_capabilities arm64_features[] = {
                .matches = cpufeature_pan_not_uao,
        },
 #endif /* CONFIG_ARM64_PAN */
+       {
+               .desc = "Virtualization Host Extensions",
+               .capability = ARM64_HAS_VIRT_HOST_EXTN,
+               .matches = runs_at_el2,
+       },
        {},
 };