Re: [PATCH] linux-user/aarch64: Enable hwcap for RND, BTI, and MTE

[Peter Maydell]

On Tue, 27 Apr 2021 at 22:41, Richard Henderson
 wrote:
>
> These three features are already enabled by TCG, but are missing
> their hwcap bits.  Update HWCAP2 from linux v5.12.
>
> Cc: qemu-sta...@nongnu.org (for 6.0.1)
> Buglink: https://bugs.launchpad.net/bugs/1926044
> Signed-off-by: Richard Henderson 
> ---
>  linux-user/elfload.c | 13 +
>  1 file changed, 13 insertions(+)



Applied to target-arm.next, thanks.

-- PMM

[PATCH] linux-user/aarch64: Enable hwcap for RND, BTI, and MTE

[Richard Henderson]

These three features are already enabled by TCG, but are missing
their hwcap bits.  Update HWCAP2 from linux v5.12.

Cc: qemu-sta...@nongnu.org (for 6.0.1)
Buglink: https://bugs.launchpad.net/bugs/1926044
Signed-off-by: Richard Henderson 
---
 linux-user/elfload.c | 13 +
 1 file changed, 13 insertions(+)

diff --git a/linux-user/elfload.c b/linux-user/elfload.c
index c6731013fd..fc9c4f12be 100644
--- a/linux-user/elfload.c
+++ b/linux-user/elfload.c
@@ -586,6 +586,16 @@ enum {
 ARM_HWCAP2_A64_SVESM4   = 1 << 6,
 ARM_HWCAP2_A64_FLAGM2   = 1 << 7,
 ARM_HWCAP2_A64_FRINT= 1 << 8,
+ARM_HWCAP2_A64_SVEI8MM  = 1 << 9,
+ARM_HWCAP2_A64_SVEF32MM = 1 << 10,
+ARM_HWCAP2_A64_SVEF64MM = 1 << 11,
+ARM_HWCAP2_A64_SVEBF16  = 1 << 12,
+ARM_HWCAP2_A64_I8MM = 1 << 13,
+ARM_HWCAP2_A64_BF16 = 1 << 14,
+ARM_HWCAP2_A64_DGH  = 1 << 15,
+ARM_HWCAP2_A64_RNG  = 1 << 16,
+ARM_HWCAP2_A64_BTI  = 1 << 17,
+ARM_HWCAP2_A64_MTE  = 1 << 18,
 };
 
 #define ELF_HWCAP   get_elf_hwcap()
@@ -640,6 +650,9 @@ static uint32_t get_elf_hwcap2(void)
 GET_FEATURE_ID(aa64_dcpodp, ARM_HWCAP2_A64_DCPODP);
 GET_FEATURE_ID(aa64_condm_5, ARM_HWCAP2_A64_FLAGM2);
 GET_FEATURE_ID(aa64_frint, ARM_HWCAP2_A64_FRINT);
+GET_FEATURE_ID(aa64_rndr, ARM_HWCAP2_A64_RNG);
+GET_FEATURE_ID(aa64_bti, ARM_HWCAP2_A64_BTI);
+GET_FEATURE_ID(aa64_mte, ARM_HWCAP2_A64_MTE);
 
 return hwcaps;
 }
-- 
2.25.1