[PATCH v26 19/20] target/i386: gdbstub: only write CR0/CR2/CR3/EFER for sysemu

From: Claudio Fontana <cfontana@suse.de>
To: "Paolo Bonzini" <pbonzini@redhat.com>,
	"Richard Henderson" <richard.henderson@linaro.org>,
	"Philippe Mathieu-Daudé" <philmd@redhat.com>,
	"Eduardo Habkost" <ehabkost@redhat.com>,
	"Peter Maydell" <peter.maydell@linaro.org>,
	"Alex Bennée" <alex.bennee@linaro.org>
Cc: Laurent Vivier <lvivier@redhat.com>,
	Thomas Huth <thuth@redhat.com>,
	Roman Bolshakov <r.bolshakov@yadro.com>,
	Claudio Fontana <cfontana@suse.de>,
	qemu-devel@nongnu.org
Subject: [PATCH v26 19/20] target/i386: gdbstub: only write CR0/CR2/CR3/EFER for sysemu
Date: Mon,  1 Mar 2021 09:54:49 +0100	[thread overview]
Message-ID: <20210301085450.1732-20-cfontana@suse.de> (raw)
In-Reply-To: <20210301085450.1732-1-cfontana@suse.de>

Signed-off-by: Claudio Fontana <cfontana@suse.de>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
 target/i386/gdbstub.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/target/i386/gdbstub.c b/target/i386/gdbstub.c
index 4ad1295425..098a2ad15a 100644
--- a/target/i386/gdbstub.c
+++ b/target/i386/gdbstub.c
@@ -351,22 +351,30 @@ int x86_cpu_gdb_write_register(CPUState *cs, uint8_t *mem_buf, int n)
 
         case IDX_CTL_CR0_REG:
             len = gdb_write_reg_cs64(env->hflags, mem_buf, &tmp);
+#ifndef CONFIG_USER_ONLY
             cpu_x86_update_cr0(env, tmp);
+#endif
             return len;
 
         case IDX_CTL_CR2_REG:
             len = gdb_write_reg_cs64(env->hflags, mem_buf, &tmp);
+#ifndef CONFIG_USER_ONLY
             env->cr[2] = tmp;
+#endif
             return len;
 
         case IDX_CTL_CR3_REG:
             len = gdb_write_reg_cs64(env->hflags, mem_buf, &tmp);
+#ifndef CONFIG_USER_ONLY
             cpu_x86_update_cr3(env, tmp);
+#endif
             return len;
 
         case IDX_CTL_CR4_REG:
             len = gdb_write_reg_cs64(env->hflags, mem_buf, &tmp);
+#ifndef CONFIG_USER_ONLY
             cpu_x86_update_cr4(env, tmp);
+#endif
             return len;
 
         case IDX_CTL_CR8_REG:
@@ -378,7 +386,9 @@ int x86_cpu_gdb_write_register(CPUState *cs, uint8_t *mem_buf, int n)
 
         case IDX_CTL_EFER_REG:
             len = gdb_write_reg_cs64(env->hflags, mem_buf, &tmp);
+#ifndef CONFIG_USER_ONLY
             cpu_load_efer(env, tmp);
+#endif
             return len;
         }
     }
-- 
2.26.2


