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[Qemu-devel] [PULL v2 02/15] linux-user: Add AT_HWCAP2 for aarch64-linux
From: |
Laurent Vivier |
Subject: |
[Qemu-devel] [PULL v2 02/15] linux-user: Add AT_HWCAP2 for aarch64-linux-user |
Date: |
Wed, 11 Sep 2019 08:49:07 +0200 |
From: Richard Henderson <address@hidden>
Add the HWCAP2_* bits from kernel version v5.3-rc3.
Enable the bits corresponding to ARMv8.5-CondM and ARMv8.5-FRINT.
Signed-off-by: Richard Henderson <address@hidden>
Reviewed-by: Peter Maydell <address@hidden>
Message-Id: <address@hidden>
Signed-off-by: Laurent Vivier <address@hidden>
---
linux-user/elfload.c | 31 +++++++++++++++++++++++++++----
1 file changed, 27 insertions(+), 4 deletions(-)
diff --git a/linux-user/elfload.c b/linux-user/elfload.c
index 3365e192eb3f..43c16a846d33 100644
--- a/linux-user/elfload.c
+++ b/linux-user/elfload.c
@@ -607,9 +607,23 @@ enum {
ARM_HWCAP_A64_SB = 1 << 29,
ARM_HWCAP_A64_PACA = 1 << 30,
ARM_HWCAP_A64_PACG = 1UL << 31,
+
+ ARM_HWCAP2_A64_DCPODP = 1 << 0,
+ ARM_HWCAP2_A64_SVE2 = 1 << 1,
+ ARM_HWCAP2_A64_SVEAES = 1 << 2,
+ ARM_HWCAP2_A64_SVEPMULL = 1 << 3,
+ ARM_HWCAP2_A64_SVEBITPERM = 1 << 4,
+ ARM_HWCAP2_A64_SVESHA3 = 1 << 5,
+ ARM_HWCAP2_A64_SVESM4 = 1 << 6,
+ ARM_HWCAP2_A64_FLAGM2 = 1 << 7,
+ ARM_HWCAP2_A64_FRINT = 1 << 8,
};
-#define ELF_HWCAP get_elf_hwcap()
+#define ELF_HWCAP get_elf_hwcap()
+#define ELF_HWCAP2 get_elf_hwcap2()
+
+#define GET_FEATURE_ID(feat, hwcap) \
+ do { if (cpu_isar_feature(feat, cpu)) { hwcaps |= hwcap; } } while (0)
static uint32_t get_elf_hwcap(void)
{
@@ -621,8 +635,6 @@ static uint32_t get_elf_hwcap(void)
hwcaps |= ARM_HWCAP_A64_CPUID;
/* probe for the extra features */
-#define GET_FEATURE_ID(feat, hwcap) \
- do { if (cpu_isar_feature(feat, cpu)) { hwcaps |= hwcap; } } while (0)
GET_FEATURE_ID(aa64_aes, ARM_HWCAP_A64_AES);
GET_FEATURE_ID(aa64_pmull, ARM_HWCAP_A64_PMULL);
@@ -645,11 +657,22 @@ static uint32_t get_elf_hwcap(void)
GET_FEATURE_ID(aa64_sb, ARM_HWCAP_A64_SB);
GET_FEATURE_ID(aa64_condm_4, ARM_HWCAP_A64_FLAGM);
-#undef GET_FEATURE_ID
+ return hwcaps;
+}
+
+static uint32_t get_elf_hwcap2(void)
+{
+ ARMCPU *cpu = ARM_CPU(thread_cpu);
+ uint32_t hwcaps = 0;
+
+ GET_FEATURE_ID(aa64_condm_5, ARM_HWCAP2_A64_FLAGM2);
+ GET_FEATURE_ID(aa64_frint, ARM_HWCAP2_A64_FRINT);
return hwcaps;
}
+#undef GET_FEATURE_ID
+
#endif /* not TARGET_AARCH64 */
#endif /* TARGET_ARM */
--
2.21.0
- [Qemu-devel] [PULL v2 00/15] Linux user for 4.2 patches, Laurent Vivier, 2019/09/11
- [Qemu-devel] [PULL v2 02/15] linux-user: Add AT_HWCAP2 for aarch64-linux-user,
Laurent Vivier <=
- [Qemu-devel] [PULL v2 03/15] linux-user: erroneous fd_trans_unregister call, Laurent Vivier, 2019/09/11
- [Qemu-devel] [PULL v2 04/15] linux-user: fail and report on bad dfilter specs, Laurent Vivier, 2019/09/11
- [Qemu-devel] [PULL v2 07/15] linux-user/arm: Adjust MAX_RESERVED_VA for M-profile, Laurent Vivier, 2019/09/11
- [Qemu-devel] [PULL v2 13/15] linux-user: Add support for FDFLUSH ioctl, Laurent Vivier, 2019/09/11
- [Qemu-devel] [PULL v2 05/15] linux-user: add memfd_create, Laurent Vivier, 2019/09/11
- [Qemu-devel] [PULL v2 06/15] linux-user: Pass CPUState to MAX_RESERVED_VA, Laurent Vivier, 2019/09/11
- [Qemu-devel] [PULL v2 08/15] linux-user: Support gdb 'qOffsets' query for ELF, Laurent Vivier, 2019/09/11
- [Qemu-devel] [PULL v2 09/15] target/xtensa: linux-user: add call0 ABI support, Laurent Vivier, 2019/09/11
- [Qemu-devel] [PULL v2 11/15] linux-user: Add support for RNDRESEEDCRNG ioctl, Laurent Vivier, 2019/09/11
- [Qemu-devel] [PULL v2 01/15] linux-user: remove useless variable, Laurent Vivier, 2019/09/11