Upstream Linux recently added RISC-V Zicboz support to the hwprobe API.
This patch introduces this for QEMU's user space emulator.

Signed-off-by: Christoph Müllner <christoph.muellner@vrull.eu>
---
 linux-user/syscall.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index e384e14248..43467c9707 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -8799,6 +8799,7 @@ static int do_getdents64(abi_long dirfd, abi_long arg2, abi_long count)
 #define     RISCV_HWPROBE_EXT_ZBA      (1 << 3)
 #define     RISCV_HWPROBE_EXT_ZBB      (1 << 4)
 #define     RISCV_HWPROBE_EXT_ZBS      (1 << 5)
+#define     RISCV_HWPROBE_EXT_ZICBOZ   (1 << 6)
 
 #define RISCV_HWPROBE_KEY_CPUPERF_0     5
 #define     RISCV_HWPROBE_MISALIGNED_UNKNOWN     (0 << 0)
@@ -8857,6 +8858,8 @@ static void risc_hwprobe_fill_pairs(CPURISCVState *env,
                      RISCV_HWPROBE_EXT_ZBB : 0;
             value |= cfg->ext_zbs ?
                      RISCV_HWPROBE_EXT_ZBS : 0;
+            value |= cfg->ext_zicboz ?
+                     RISCV_HWPROBE_EXT_ZICBOZ : 0;
             __put_user(value, &pair->value);
             break;
         case RISCV_HWPROBE_KEY_CPUPERF_0:
-- 
2.43.0

On 2/7/24 08:59, Christoph Müllner wrote:
> Upstream Linux recently added RISC-V Zicboz support to the hwprobe API.
> This patch introduces this for QEMU's user space emulator.
> 
> Signed-off-by: Christoph Müllner <christoph.muellner@vrull.eu>
> ---

Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>

>   linux-user/syscall.c | 3 +++
>   1 file changed, 3 insertions(+)
> 
> diff --git a/linux-user/syscall.c b/linux-user/syscall.c
> index e384e14248..43467c9707 100644
> --- a/linux-user/syscall.c
> +++ b/linux-user/syscall.c
> @@ -8799,6 +8799,7 @@ static int do_getdents64(abi_long dirfd, abi_long arg2, abi_long count)
>   #define     RISCV_HWPROBE_EXT_ZBA      (1 << 3)
>   #define     RISCV_HWPROBE_EXT_ZBB      (1 << 4)
>   #define     RISCV_HWPROBE_EXT_ZBS      (1 << 5)
> +#define     RISCV_HWPROBE_EXT_ZICBOZ   (1 << 6)
>   
>   #define RISCV_HWPROBE_KEY_CPUPERF_0     5
>   #define     RISCV_HWPROBE_MISALIGNED_UNKNOWN     (0 << 0)
> @@ -8857,6 +8858,8 @@ static void risc_hwprobe_fill_pairs(CPURISCVState *env,
>                        RISCV_HWPROBE_EXT_ZBB : 0;
>               value |= cfg->ext_zbs ?
>                        RISCV_HWPROBE_EXT_ZBS : 0;
> +            value |= cfg->ext_zicboz ?
> +                     RISCV_HWPROBE_EXT_ZICBOZ : 0;
>               __put_user(value, &pair->value);
>               break;
>           case RISCV_HWPROBE_KEY_CPUPERF_0: