Bugs item #2063072, was opened at 2008-08-21 00:29
Message generated for change (Comment added) made by avik
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Category: qemu
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Jana Delego (janado)
Assigned to: Anthony Liguori (aliguori)
Summary: compiling problem with "tcg_ctx"
Initial Comment:
When compiling kvm using the "--disable-cpu-emulation" flag on a 64 bit Intel
Ubuntu, the compiler aborts with error "undefined reference to tcg_ctx",
This problem exists since kvm-70.
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>Comment By: Avi Kivity (avik)
Date: 2008-10-02 17:05
Message:
Well, it would be nice to support --disable-cpu-emulation, for example if
you're worried about tcg security holes or tcg performance.
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Comment By: Anthony Liguori (aliguori)
Date: 2008-09-29 16:56
Message:
--disable-cpu-emulation should not be used with x86. It only exists as an
ugly hack because ia64 doesn't support TCG.
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Comment By: Shen Okinudo (okinu)
Date: 2008-09-29 04:37
Message:
This bug persists in kvm-76
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Comment By: Marshal Newrock (freedombi)
Date: 2008-09-02 02:40
Message:
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This seems to work with kvm-74. The patch allowed compilation, and the
guest appears to be running well.
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Comment By: Amit Shah (amitshah)
Date: 2008-08-29 12:59
Message:
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I'm not sure if this will make qemu work properly, but it fixes the build
(also attached). Can you confirm if this works?
commit 244cafe6688940c25c81b31aa223c9e24656806e
Author: Amit Shah <[EMAIL PROTECTED]>
Date: Fri Aug 29 15:20:14 2008 +0530
KVM: QEMU: Fix userspace build with --disable-cpu-emulation
I'm not sure this will work properly, but fixes the build.
ppc might need something like this as well
Signed-off-by: Amit Shah <[EMAIL PROTECTED]>
diff --git a/qemu/target-i386/fake-exec.c b/qemu/target-i386/fake-exec.c
index 737286d..552089b 100644
--- a/qemu/target-i386/fake-exec.c
+++ b/qemu/target-i386/fake-exec.c
@@ -12,6 +12,13 @@
*/
#include "exec.h"
#include "cpu.h"
+#include "tcg.h"
+
+/* code generation context */
+TCGContext tcg_ctx;
+
+uint16_t gen_opc_buf[OPC_BUF_SIZE];
+TCGArg gen_opparam_buf[OPPARAM_BUF_SIZE];
int code_copy_enabled = 0;
@@ -45,10 +52,6 @@ int cpu_x86_gen_code(CPUState *env, TranslationBlock
*tb, int *gen_code_size_ptr
return 0;
}
-void flush_icache_range(unsigned long start, unsigned long stop)
-{
-}
-
void optimize_flags_init(void)
{
}
File Added: 0001-KVM-QEMU-Fix-userspace-build-with-disable-cpu-em.patch
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