From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:41345) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Zroz3-0003cp-3b for qemu-devel@nongnu.org; Thu, 29 Oct 2015 11:19:22 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Zroz0-0005jR-C5 for qemu-devel@nongnu.org; Thu, 29 Oct 2015 11:19:21 -0400 Received: from mailapp01.imgtec.com ([195.59.15.196]:61950) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Zroz0-0005jJ-7N for qemu-devel@nongnu.org; Thu, 29 Oct 2015 11:19:18 -0400 From: Yongbok Kim Date: Thu, 29 Oct 2015 15:18:37 +0000 Message-ID: <1446131919-36668-1-git-send-email-yongbok.kim@imgtec.com> MIME-Version: 1.0 Content-Type: text/plain Subject: [Qemu-devel] [PATCH v2] target-mips: fix updating XContext on mmu exception List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: leon.alrae@imgtec.com, aurelien@aurel32.net Correct updating XContext.Region field on mmu exceptions. If Config3.CTXTC = 0 then the R field of XContext has to be updated with the value of bits 63..62 of the virtual address upon a TLB exception. Also fixed the below line which overs 80 characters. Signed-off-by: Yongbok Kim --- target-mips/helper.c | 10 +++++++--- 1 files changed, 7 insertions(+), 3 deletions(-) diff --git a/target-mips/helper.c b/target-mips/helper.c index 2d86323..1919ba6 100644 --- a/target-mips/helper.c +++ b/target-mips/helper.c @@ -293,9 +293,13 @@ static void raise_mmu_exception(CPUMIPSState *env, target_ulong address, (env->CP0_EntryHi & 0xFF) | (address & (TARGET_PAGE_MASK << 1)); #if defined(TARGET_MIPS64) env->CP0_EntryHi &= env->SEGMask; - env->CP0_XContext = (env->CP0_XContext & ((~0ULL) << (env->SEGBITS - 7))) | - ((address & 0xC00000000000ULL) >> (55 - env->SEGBITS)) | - ((address & ((1ULL << env->SEGBITS) - 1) & 0xFFFFFFFFFFFFE000ULL) >> 9); + env->CP0_XContext = + /* PTEBase */ + (env->CP0_XContext & ((~0ULL) << (env->SEGBITS - 7))) | + /* R */ + (extract64(address, 62, 2) << (env->SEGBITS - 9)) | + /* BadVPN2 */ + (extract64(address, 13, env->SEGBITS - 14) << 4); #endif cs->exception_index = exception; env->error_code = error_code; -- 1.7.1