| Message ID | 1383995103-24732-5-git-send-email-paulus@samba.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
diff --git a/arch/powerpc/kvm/book3s_hv_rmhandlers.S b/arch/powerpc/kvm/book3s_hv_rmhandlers.S index de45a2f..35b7902 100644 --- a/arch/powerpc/kvm/book3s_hv_rmhandlers.S +++ b/arch/powerpc/kvm/book3s_hv_rmhandlers.S @@ -654,7 +654,13 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_201) andc r7,r7,r0 stdcx. r7,0,r6 bne 23b - li r6,128 /* and flush the TLB */ + /* Flush the TLB of any entries for this LPID */ + /* use arch 2.07S as a proxy for POWER8 */ +BEGIN_FTR_SECTION + li r6,512 /* POWER8 has 512 sets */ +FTR_SECTION_ELSE + li r6,128 /* POWER7 has 128 sets */ +ALT_FTR_SECTION_END_IFSET(CPU_FTR_ARCH_207S) mtctr r6 li r7,0x800 /* IS field = 0b10 */ ptesync
POWER8 has 512 sets in the TLB, compared to 128 for POWER7, so we need to do more tlbiel instructions when flushing the TLB on POWER8. Signed-off-by: Paul Mackerras <paulus@samba.org> --- arch/powerpc/kvm/book3s_hv_rmhandlers.S | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-)