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tests/tcg/aarch64: Adjust pauth tests for FEAT_FPAC

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With FEAT_FPAC, AUT* instructions that fail authentication
do not produce an error value but instead fault.

For pauth-2, install a signal handler and verify it gets called.

For pauth-4 and pauth-5, we are explicitly testing the error value,
so there's nothing to test with FEAT_FPAC, so exit early.
Adjust the makefile to use -cpu neoverse-v1, which has FEAT_EPAC
but not FEAT_FPAC.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230829232335.965414-2-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Richard Henderson 2023-08-29 16:23:24 -07:00 • committed by Peter Maydell
parent 03a3a62fbd
commit 871a7f6a9a
5 changed files with 98 additions and 13 deletions
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10
tests/tcg/aarch64/pauth-5.c
View file

@ -1,4 +1,5 @@
#include <assert.h>
#include "pauth.h"
static int x;
@ -6,6 +7,15 @@ int main()
{
int *p0 = &x, *p1, *p2, *p3;
unsigned long salt = 0;
int pac_feature = get_pac_feature();
/*
* Exit if no PAuth or FEAT_FPAC, which will SIGILL on AUTDA failure
* rather than return an error for us to check below.
*/
if (pac_feature == 0 || pac_feature >= 4) {
return 0;
}
/*
* With TBI enabled and a 48-bit VA, there are 7 bits of auth, and so