From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:50397) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1W522v-0004pM-44 for qemu-devel@nongnu.org; Sun, 19 Jan 2014 18:44:59 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1W522l-0004NL-8R for qemu-devel@nongnu.org; Sun, 19 Jan 2014 18:44:53 -0500 From: Alexander Graf Date: Mon, 20 Jan 2014 00:44:30 +0100 Message-Id: <1390175077-5717-4-git-send-email-agraf@suse.de> In-Reply-To: <1390175077-5717-1-git-send-email-agraf@suse.de> References: <1390175077-5717-1-git-send-email-agraf@suse.de> Subject: [Qemu-devel] [PATCH 03/10] PPC: Add stub emulation for HDBCR0 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: qemu-ppc@nongnu.org The HDBCR0 register is available for hardware debuggers which we don't emulate. However, we can treat it as a generic storage register that doesn't have any effect, making guests happy. Signed-off-by: Alexander Graf --- target-ppc/cpu.h | 1 + target-ppc/translate_init.c | 4 ++++ 2 files changed, 5 insertions(+) diff --git a/target-ppc/cpu.h b/target-ppc/cpu.h index 70708d4..1289e13 100644 --- a/target-ppc/cpu.h +++ b/target-ppc/cpu.h @@ -1597,6 +1597,7 @@ static inline int cpu_mmu_index (CPUPPCState *env) #define SPR_403_VTBL (0x3CC) #define SPR_403_VTBU (0x3CD) #define SPR_DMISS (0x3D0) +#define SPR_Exxx_HDBCR0 (0x3D0) #define SPR_DCMP (0x3D1) #define SPR_HASH1 (0x3D2) #define SPR_HASH2 (0x3D3) diff --git a/target-ppc/translate_init.c b/target-ppc/translate_init.c index 35470d4..37a0ed2 100644 --- a/target-ppc/translate_init.c +++ b/target-ppc/translate_init.c @@ -4581,6 +4581,10 @@ static void init_proc_e500 (CPUPPCState *env, int version) SPR_NOACCESS, SPR_NOACCESS, &spr_read_generic, SPR_NOACCESS, 0x00000000); + spr_register(env, SPR_Exxx_HDBCR0, "HDBCR0", + SPR_NOACCESS, SPR_NOACCESS, + &spr_read_generic, &spr_write_generic, + 0x00000000); /* XXX better abstract into Emb.xxx features */ if (version == fsl_e5500) { spr_register(env, SPR_BOOKE_EPCR, "EPCR", -- 1.8.1.4