Displaying 20 results from an estimated 21 matches for "vmi_relocation_nop".
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vmi_relocation_none
2007 Apr 18
1
[PATCH] 2.6.21 - VMI logic error
...ng a =
workaround for this or else breaking compatibility with these kernels.
Thanks,
Zach
-------------- next part --------------
Fix logic error in VMI relocation processing. NOPs would always cause
a BUG_ON to fire because the !=3D RELOCATION_NONE in the first if clause
precluding the =3D=3D VMI_RELOCATION_NOP in the second clause. Make these
direct equality tests and just warn for unsupported relocation types
(which should never happen), falling back to native in that case.
Thanks to Anthony Liguori for noting this!
Signed-off-by: Zachary Amsden <zach@vmware.com>
diff -r 99800d11a3ec arch/i386...
2007 Apr 18
1
[PATCH] 2.6.21 - VMI logic error
...ng a =
workaround for this or else breaking compatibility with these kernels.
Thanks,
Zach
-------------- next part --------------
Fix logic error in VMI relocation processing. NOPs would always cause
a BUG_ON to fire because the !=3D RELOCATION_NONE in the first if clause
precluding the =3D=3D VMI_RELOCATION_NOP in the second clause. Make these
direct equality tests and just warn for unsupported relocation types
(which should never happen), falling back to native in that case.
Thanks to Anthony Liguori for noting this!
Signed-off-by: Zachary Amsden <zach@vmware.com>
diff -r 99800d11a3ec arch/i386...
2007 Apr 18
0
[PATCH 8/9] Vmi apic ops.diff
...s returned by the ROM.
*/
#define para_fill(opname, vmicall) \
do { \
@@ -692,8 +694,28 @@ do { \
if (rel->type != VMI_RELOCATION_NONE) { \
BUG_ON(rel->type != VMI_RELOCATION_CALL_REL); \
paravirt_ops.opname = (void *)rel->eip; \
+ } else if (rel->type == VMI_RELOCATION_NOP) \
+ paravirt_ops.opname = (void *)vmi_nop; \
+} while (0)
+
+/*
+ * Helper macro for making the VMI paravirt-ops fill code readable.
+ * For cached operations which do not match the VMI ROM ABI and must
+ * go through a tranlation stub. Ignore NOPs, since it is not clear
+ * a NOP * VMI funct...
2007 Apr 18
0
[PATCH 8/9] Vmi apic ops.diff
...s returned by the ROM.
*/
#define para_fill(opname, vmicall) \
do { \
@@ -692,8 +694,28 @@ do { \
if (rel->type != VMI_RELOCATION_NONE) { \
BUG_ON(rel->type != VMI_RELOCATION_CALL_REL); \
paravirt_ops.opname = (void *)rel->eip; \
+ } else if (rel->type == VMI_RELOCATION_NOP) \
+ paravirt_ops.opname = (void *)vmi_nop; \
+} while (0)
+
+/*
+ * Helper macro for making the VMI paravirt-ops fill code readable.
+ * For cached operations which do not match the VMI ROM ABI and must
+ * go through a tranlation stub. Ignore NOPs, since it is not clear
+ * a NOP * VMI funct...
2010 Aug 23
1
Removing VMI kernel support from 2.6.37
...--------------
- *
- * VMI relocation definitions for ROM call get_reloc
- *
- *---------------------------------------------------------------------
- */
-
-/* VMI Relocation types */
-#define VMI_RELOCATION_NONE 0
-#define VMI_RELOCATION_CALL_REL 1
-#define VMI_RELOCATION_JUMP_REL 2
-#define VMI_RELOCATION_NOP 3
-
-#ifndef __ASSEMBLY__
-struct vmi_relocation_info {
- unsigned char *eip;
- unsigned char type;
- unsigned char reserved[3];
-};
-#endif
-
-
-/*
- *---------------------------------------------------------------------
- *
- * Generic ROM structures and definitions...
2010 Aug 23
1
Removing VMI kernel support from 2.6.37
...--------------
- *
- * VMI relocation definitions for ROM call get_reloc
- *
- *---------------------------------------------------------------------
- */
-
-/* VMI Relocation types */
-#define VMI_RELOCATION_NONE 0
-#define VMI_RELOCATION_CALL_REL 1
-#define VMI_RELOCATION_JUMP_REL 2
-#define VMI_RELOCATION_NOP 3
-
-#ifndef __ASSEMBLY__
-struct vmi_relocation_info {
- unsigned char *eip;
- unsigned char type;
- unsigned char reserved[3];
-};
-#endif
-
-
-/*
- *---------------------------------------------------------------------
- *
- * Generic ROM structures and definitions...
2007 Apr 18
0
[PATCH 4/5] Vmi.patch
...ype) {
+ case VMI_RELOCATION_CALL_REL:
+ BUG_ON(len < 5);
+ *(char *)insns = MNEM_CALL;
+ patch_offset(insns, rel->eip);
+ return 5;
+
+ case VMI_RELOCATION_JUMP_REL:
+ BUG_ON(len < 5);
+ *(char *)insns = MNEM_JMP;
+ patch_offset(insns, rel->eip);
+ return 5;
+
+ case VMI_RELOCATION_NOP:
+ /* obliterate the whole thing */
+ return 0;
+
+ case VMI_RELOCATION_NONE:
+ /* leave native code in place */
+ break;
+
+ default:
+ BUG();
+ }
+ return len;
+}
+
+/*
+ * Apply patch if appropriate, return length of new instruction
+ * sequence. The callee does nop padding for us....
2007 Apr 18
0
[PATCH 4/5] Vmi.patch
...ype) {
+ case VMI_RELOCATION_CALL_REL:
+ BUG_ON(len < 5);
+ *(char *)insns = MNEM_CALL;
+ patch_offset(insns, rel->eip);
+ return 5;
+
+ case VMI_RELOCATION_JUMP_REL:
+ BUG_ON(len < 5);
+ *(char *)insns = MNEM_JMP;
+ patch_offset(insns, rel->eip);
+ return 5;
+
+ case VMI_RELOCATION_NOP:
+ /* obliterate the whole thing */
+ return 0;
+
+ case VMI_RELOCATION_NONE:
+ /* leave native code in place */
+ break;
+
+ default:
+ BUG();
+ }
+ return len;
+}
+
+/*
+ * Apply patch if appropriate, return length of new instruction
+ * sequence. The callee does nop padding for us....
2007 Apr 18
0
[PATCH 5/6] VMI backend for paravirt-ops
...ype) {
+ case VMI_RELOCATION_CALL_REL:
+ BUG_ON(len < 5);
+ *(char *)insns = MNEM_CALL;
+ patch_offset(insns, rel->eip);
+ return 5;
+
+ case VMI_RELOCATION_JUMP_REL:
+ BUG_ON(len < 5);
+ *(char *)insns = MNEM_JMP;
+ patch_offset(insns, rel->eip);
+ return 5;
+
+ case VMI_RELOCATION_NOP:
+ /* obliterate the whole thing */
+ return 0;
+
+ case VMI_RELOCATION_NONE:
+ /* leave native code in place */
+ break;
+
+ default:
+ BUG();
+ }
+ return len;
+}
+
+/*
+ * Apply patch if appropriate, return length of new instruction
+ * sequence. The callee does nop padding for us....
2007 Apr 18
0
[PATCH 5/6] VMI backend for paravirt-ops
...ype) {
+ case VMI_RELOCATION_CALL_REL:
+ BUG_ON(len < 5);
+ *(char *)insns = MNEM_CALL;
+ patch_offset(insns, rel->eip);
+ return 5;
+
+ case VMI_RELOCATION_JUMP_REL:
+ BUG_ON(len < 5);
+ *(char *)insns = MNEM_JMP;
+ patch_offset(insns, rel->eip);
+ return 5;
+
+ case VMI_RELOCATION_NOP:
+ /* obliterate the whole thing */
+ return 0;
+
+ case VMI_RELOCATION_NONE:
+ /* leave native code in place */
+ break;
+
+ default:
+ BUG();
+ }
+ return len;
+}
+
+/*
+ * Apply patch if appropriate, return length of new instruction
+ * sequence. The callee does nop padding for us....
2007 Jul 24
1
lguest doesn't work on kernel 2.6.23-rc1
Hi, all, I have difficulty on setting up lguest. Basic OS info:
gcc 4.1.2
glibc: 2.5.1
binutils: 2.17
kernel: 2.6.23-rc1
Following lguest.txt instruction, I build lguest enaled kernel,
disable CONFIG_COMPAT_VDSO, the host kernel boot fine, but when
booting Qemu image using lguest laucher program, the guest kernel
vmlinux panic, attached console.txt is console output, and config.txt
is kernel
2007 Jul 24
1
lguest doesn't work on kernel 2.6.23-rc1
Hi, all, I have difficulty on setting up lguest. Basic OS info:
gcc 4.1.2
glibc: 2.5.1
binutils: 2.17
kernel: 2.6.23-rc1
Following lguest.txt instruction, I build lguest enaled kernel,
disable CONFIG_COMPAT_VDSO, the host kernel boot fine, but when
booting Qemu image using lguest laucher program, the guest kernel
vmlinux panic, attached console.txt is console output, and config.txt
is kernel
2007 Oct 09
2
[PATCH RFC REPOST 1/2] paravirt: refactor struct paravirt_ops into smaller pv_*_ops
...ault:
break;
@@ -690,9 +690,9 @@ do { \
reloc = call_vrom_long_func(vmi_rom, get_reloc, \
VMI_CALL_##vmicall); \
if (rel->type == VMI_RELOCATION_CALL_REL) \
- paravirt_ops.opname = (void *)rel->eip; \
+ opname = (void *)rel->eip; \
else if (rel->type == VMI_RELOCATION_NOP) \
- paravirt_ops.opname = (void *)vmi_nop; \
+ opname = (void *)vmi_nop; \
else if (rel->type != VMI_RELOCATION_NONE) \
printk(KERN_WARNING "VMI: Unknown relocation " \
"type %d for " #vmicall"\n",\
@@ -712,7 +712,7 @@ do { \
V...
2007 Oct 09
2
[PATCH RFC REPOST 1/2] paravirt: refactor struct paravirt_ops into smaller pv_*_ops
...ault:
break;
@@ -690,9 +690,9 @@ do { \
reloc = call_vrom_long_func(vmi_rom, get_reloc, \
VMI_CALL_##vmicall); \
if (rel->type == VMI_RELOCATION_CALL_REL) \
- paravirt_ops.opname = (void *)rel->eip; \
+ opname = (void *)rel->eip; \
else if (rel->type == VMI_RELOCATION_NOP) \
- paravirt_ops.opname = (void *)vmi_nop; \
+ opname = (void *)vmi_nop; \
else if (rel->type != VMI_RELOCATION_NONE) \
printk(KERN_WARNING "VMI: Unknown relocation " \
"type %d for " #vmicall"\n",\
@@ -712,7 +712,7 @@ do { \
V...
2007 Sep 28
2
[PATCH RFC] paravirt_ops: refactor struct paravirt_ops into smaller pv_*_ops
...ault:
break;
@@ -690,9 +690,9 @@ do { \
reloc = call_vrom_long_func(vmi_rom, get_reloc, \
VMI_CALL_##vmicall); \
if (rel->type == VMI_RELOCATION_CALL_REL) \
- paravirt_ops.opname = (void *)rel->eip; \
+ opname = (void *)rel->eip; \
else if (rel->type == VMI_RELOCATION_NOP) \
- paravirt_ops.opname = (void *)vmi_nop; \
+ opname = (void *)vmi_nop; \
else if (rel->type != VMI_RELOCATION_NONE) \
printk(KERN_WARNING "VMI: Unknown relocation " \
"type %d for " #vmicall"\n",\
@@ -712,7 +712,7 @@ do { \
V...
2007 Sep 28
2
[PATCH RFC] paravirt_ops: refactor struct paravirt_ops into smaller pv_*_ops
...ault:
break;
@@ -690,9 +690,9 @@ do { \
reloc = call_vrom_long_func(vmi_rom, get_reloc, \
VMI_CALL_##vmicall); \
if (rel->type == VMI_RELOCATION_CALL_REL) \
- paravirt_ops.opname = (void *)rel->eip; \
+ opname = (void *)rel->eip; \
else if (rel->type == VMI_RELOCATION_NOP) \
- paravirt_ops.opname = (void *)vmi_nop; \
+ opname = (void *)vmi_nop; \
else if (rel->type != VMI_RELOCATION_NONE) \
printk(KERN_WARNING "VMI: Unknown relocation " \
"type %d for " #vmicall"\n",\
@@ -712,7 +712,7 @@ do { \
V...
2007 Jul 09
1
[PATCH RFC] first cut at splitting up paravirt_ops
...ault:
break;
@@ -684,9 +684,9 @@ do { \
reloc = call_vrom_long_func(vmi_rom, get_reloc, \
VMI_CALL_##vmicall); \
if (rel->type == VMI_RELOCATION_CALL_REL) \
- paravirt_ops.opname = (void *)rel->eip; \
+ opname = (void *)rel->eip; \
else if (rel->type == VMI_RELOCATION_NOP) \
- paravirt_ops.opname = (void *)vmi_nop; \
+ opname = (void *)vmi_nop; \
else if (rel->type != VMI_RELOCATION_NONE) \
printk(KERN_WARNING "VMI: Unknown relocation " \
"type %d for " #vmicall"\n",\
@@ -706,7 +706,7 @@ do { \
V...
2007 Jul 09
1
[PATCH RFC] first cut at splitting up paravirt_ops
...ault:
break;
@@ -684,9 +684,9 @@ do { \
reloc = call_vrom_long_func(vmi_rom, get_reloc, \
VMI_CALL_##vmicall); \
if (rel->type == VMI_RELOCATION_CALL_REL) \
- paravirt_ops.opname = (void *)rel->eip; \
+ opname = (void *)rel->eip; \
else if (rel->type == VMI_RELOCATION_NOP) \
- paravirt_ops.opname = (void *)vmi_nop; \
+ opname = (void *)vmi_nop; \
else if (rel->type != VMI_RELOCATION_NONE) \
printk(KERN_WARNING "VMI: Unknown relocation " \
"type %d for " #vmicall"\n",\
@@ -706,7 +706,7 @@ do { \
V...
2007 Oct 15
13
[PATCH 00/12] xen/paravirt_ops patches for 2.6.24
Hi Linus,
Here's a set of patches to update paravirt_ops and Xen for 2.6.24
A quick overview of the patchset:
paravirt_ops:
Remove the monolithic paravirt_ops structure, and replace it with
smaller structures of related functions. Also, clean up the handling
of lazy mode to make it easier to implement.
x86/mm/init.c: remove a chunk of dead code
Xen:
- remove duplicate includes
-
2007 Oct 15
13
[PATCH 00/12] xen/paravirt_ops patches for 2.6.24
Hi Linus,
Here's a set of patches to update paravirt_ops and Xen for 2.6.24
A quick overview of the patchset:
paravirt_ops:
Remove the monolithic paravirt_ops structure, and replace it with
smaller structures of related functions. Also, clean up the handling
of lazy mode to make it easier to implement.
x86/mm/init.c: remove a chunk of dead code
Xen:
- remove duplicate includes
-