On 8/3/23 07:42, Daniel Henrique Barboza wrote:
On 8/3/23 10:14, Nathan Egge wrote:
From: "Nathan Egge" <[email protected]>
Set V bit for hwcap if misa is set.
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1793
Signed-off-by: Nathan Egge <[email protected]>
---
Tested with the example program described in the bug:
===========
#include <sys/auxv.h>
#include <stdio.h>
#define ISA_V_HWCAP (1 << ('v' - 'a'))
void main() {
unsigned long hw_cap = getauxval(AT_HWCAP);
printf("RVV %s\n", hw_cap & ISA_V_HWCAP ? "detected" : "not found");
}
===========
$ ./qemu-riscv64 -cpu rv64,vext_spec=v1.0,v=true,vlen=128 -B 0x100000 ./a.out
RVV detected
$ ./qemu-riscv64 -cpu rv64,vext_spec=v1.0,vlen=128 -B 0x100000 ./a.out
RVV not found
Reviewed-by: Daniel Henrique Barboza <[email protected]>
Tested-by: Daniel Henrique Barboza <[email protected]>
Looks like 8.1 material to me. Thanks,
Queued to tcg-next.
r~
