On Thu, Sep 06, 2018 at 12:27:29PM +0530, Sandipan Das wrote: > This adds the HWCAP2 bit to detect if a linux user process is > running on an ISA 3.0 compliant cpu like POWER9. This can be > verified using a simple test program that prints the value in > the auxiliary vector for AT_HWCAP2 as shown below. > > Before: > $ qemu-ppc64le -cpu power8 test > 0x8c000000 > > $ qemu-ppc64le -cpu power9 test > 0x8c000000 > > After: > $ qemu-ppc64le -cpu power8 test > 0x8c000000 > > $ qemu-ppc64le -cpu power9 test > 0x8c800000 > > Signed-off-by: Sandipan Das <sandi...@linux.ibm.com>
Applied, thanks. > --- > linux-user/elfload.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/linux-user/elfload.c b/linux-user/elfload.c > index 8638612aec..e97c4cde49 100644 > --- a/linux-user/elfload.c > +++ b/linux-user/elfload.c > @@ -710,6 +710,7 @@ enum { > QEMU_PPC_FEATURE2_HAS_EBB = 0x10000000, /* Event Base Branching */ > QEMU_PPC_FEATURE2_HAS_ISEL = 0x08000000, /* Integer Select */ > QEMU_PPC_FEATURE2_HAS_TAR = 0x04000000, /* Target Address Register */ > + QEMU_PPC_FEATURE2_ARCH_3_00 = 0x00800000, /* ISA 3.00 */ > }; > > #define ELF_HWCAP get_elf_hwcap() > @@ -764,6 +765,7 @@ static uint32_t get_elf_hwcap2(void) > GET_FEATURE2(PPC2_BCTAR_ISA207, QEMU_PPC_FEATURE2_HAS_TAR); > GET_FEATURE2((PPC2_BCTAR_ISA207 | PPC2_LSQ_ISA207 | PPC2_ALTIVEC_207 | > PPC2_ISA207S), QEMU_PPC_FEATURE2_ARCH_2_07); > + GET_FEATURE2(PPC2_ISA300, QEMU_PPC_FEATURE2_ARCH_3_00); > > #undef GET_FEATURE > #undef GET_FEATURE2 -- David Gibson | I'll have my music baroque, and my code david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_ | _way_ _around_! http://www.ozlabs.org/~dgibson
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