You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
268 lines
8.6 KiB
268 lines
8.6 KiB
# --- SDE-COPYRIGHT-NOTE-BEGIN --- |
|
# This copyright note is auto-generated by ./scripts/Create-CopyPatch. |
|
# |
|
# Filename: package/.../qemu/qvm86.kqemu130.patch |
|
# Copyright (C) 2006 The OpenSDE Project |
|
# |
|
# More information can be found in the files COPYING and README. |
|
# |
|
# This patch file is dual-licensed. It is available under the license the |
|
# patched project is licensed under, as long as it is an OpenSource license |
|
# as defined at http://www.opensource.org/ (e.g. BSD, X11) or under the terms |
|
# of the GNU General Public License as published by the Free Software |
|
# Foundation; either version 2 of the License, or (at your option) any later |
|
# version. |
|
# --- SDE-COPYRIGHT-NOTE-END --- |
|
|
|
by Jim C. Brown <jma5@umd.edu> |
|
http://lists.gnu.org/archive/html/qvm86-devel/2006-02/msg00000.html |
|
|
|
diff -ur qvm86.orig/kqemu.h qvm86/kqemu.h |
|
--- ./qvm86.orig/kqemu.h Thu Jul 28 12:22:55 2005 |
|
+++ ./qvm86/kqemu.h Tue Feb 14 20:45:43 2006 |
|
@@ -1,11 +1,7 @@ |
|
#ifndef KQEMU_H |
|
#define KQEMU_H |
|
|
|
-#ifdef _WIN32 |
|
-#define KQEMU_VERSION 0x010101 |
|
-#else |
|
-#define KQEMU_VERSION 0x010000 |
|
-#endif |
|
+#define KQEMU_VERSION 0x010300 |
|
|
|
struct kqemu_segment_cache { |
|
uint32_t selector; |
|
@@ -15,9 +11,13 @@ |
|
}; |
|
|
|
struct kqemu_cpu_state { |
|
- uint32_t regs[8]; |
|
- uint32_t eip; |
|
- uint32_t eflags; |
|
+#ifdef __x86_64__ |
|
+ unsigned long regs[16]; |
|
+#else |
|
+ unsigned long regs[8]; |
|
+#endif |
|
+ unsigned long eip; |
|
+ unsigned long eflags; |
|
|
|
uint32_t dummy0, dummy1, dumm2, dummy3, dummy4; |
|
|
|
@@ -27,31 +27,48 @@ |
|
struct kqemu_segment_cache gdt; /* only base and limit are used */ |
|
struct kqemu_segment_cache idt; /* only base and limit are used */ |
|
|
|
- uint32_t cr0; |
|
- uint32_t dumm5; |
|
- uint32_t cr2; |
|
- uint32_t cr3; |
|
- uint32_t cr4; |
|
+ unsigned long cr0; |
|
+ unsigned long dumm5; |
|
+ unsigned long cr2; |
|
+ unsigned long cr3; |
|
+ unsigned long cr4; |
|
uint32_t a20_mask; |
|
|
|
- uint32_t dr0; |
|
- uint32_t dr1; |
|
- uint32_t dr2; |
|
- uint32_t dr3; |
|
- uint32_t dr6; |
|
- uint32_t dr7; |
|
+ uint32_t sysenter_cs; |
|
+ uint32_t sysenter_esp; |
|
+ uint32_t sysenter_eip; |
|
+ uint64_t efer __attribute__((aligned(8))); |
|
+ uint64_t star; |
|
+#ifdef __x86_64__ |
|
+ unsigned long lstar; |
|
+ unsigned long cstar; |
|
+ unsigned long fmask; |
|
+ unsigned long kernelgsbase; |
|
+#endif |
|
+ uint64_t tsc_offset; |
|
+ |
|
+ unsigned long dr0; |
|
+ unsigned long dr1; |
|
+ unsigned long dr2; |
|
+ unsigned long dr3; |
|
+ unsigned long dr6; |
|
+ unsigned long dr7; |
|
|
|
- int cpl; /* currently only 3 */ |
|
+ uint8_t cpl; /* currently only 3 */ |
|
+ uint8_t user_only; |
|
|
|
uint32_t error_code; /* error_code when exiting with an exception */ |
|
- uint32_t next_eip; /* next eip value when exiting with an interrupt */ |
|
+ unsigned long next_eip; /* next eip value when exiting with an interrupt */ |
|
unsigned int nb_pages_to_flush; /* number of pages to flush, |
|
- KQEMU_FLUSH_ALL means full flush */ |
|
+ KQEMU_FLUSH_ALL means full flush */ |
|
#define KQEMU_MAX_PAGES_TO_FLUSH 512 |
|
#define KQEMU_FLUSH_ALL (KQEMU_MAX_PAGES_TO_FLUSH + 1) |
|
-#ifdef _WIN32 |
|
- uint32_t retval; |
|
-#endif |
|
+ long retval; |
|
+ unsigned int nb_ram_pages_to_update; |
|
+ unsigned int nb_modified_ram_pages; |
|
+#define KQEMU_MAX_RAM_PAGES_TO_UPDATE 512 |
|
+#define KQEMU_RAM_PAGES_UPDATE_ALL (KQEMU_MAX_RAM_PAGES_TO_UPDATE + 1) |
|
+#define KQEMU_MAX_MODIFIED_RAM_PAGES 512 |
|
}; |
|
|
|
struct kqemu_init { |
|
@@ -60,23 +77,28 @@ |
|
uint8_t *ram_dirty; /* must be page aligned */ |
|
uint32_t **phys_to_ram_map; /* must be page aligned */ |
|
unsigned long *pages_to_flush; /* must be page aligned */ |
|
+ unsigned long *ram_pages_to_update; /* must be page aligned */ |
|
+ unsigned long *modified_ram_pages; /* must be page aligned */ |
|
}; |
|
|
|
#define KQEMU_RET_ABORT (-1) |
|
#define KQEMU_RET_EXCEPTION 0x0000 /* 8 low order bit are the exception */ |
|
#define KQEMU_RET_INT 0x0100 /* 8 low order bit are the interrupt */ |
|
#define KQEMU_RET_SOFTMMU 0x0200 /* emulation needed (I/O or |
|
- unsupported INSN) */ |
|
+ unsupported INSN) */ |
|
#define KQEMU_RET_INTR 0x0201 /* interrupted by a signal */ |
|
+#define KQEMU_RET_SYSCALL 0x0300 /* syscall insn */ |
|
|
|
#ifdef _WIN32 |
|
#define KQEMU_EXEC CTL_CODE(FILE_DEVICE_UNKNOWN, 1, METHOD_BUFFERED, FILE_READ_ACCESS | FILE_WRITE_ACCESS) |
|
#define KQEMU_INIT CTL_CODE(FILE_DEVICE_UNKNOWN, 2, METHOD_BUFFERED, FILE_WRITE_ACCESS) |
|
#define KQEMU_GET_VERSION CTL_CODE(FILE_DEVICE_UNKNOWN, 3, METHOD_BUFFERED, FILE_READ_ACCESS) |
|
+#define KQEMU_MODIFY_RAM_PAGES CTL_CODE(FILE_DEVICE_UNKNOWN, 4, METHOD_BUFFERED, FILE_WRITE_ACCESS) |
|
#else |
|
#define KQEMU_EXEC _IOWR('q', 1, struct kqemu_cpu_state) |
|
#define KQEMU_INIT _IOW('q', 2, struct kqemu_init) |
|
#define KQEMU_GET_VERSION _IOR('q', 3, int) |
|
+#define KQEMU_MODIFY_RAM_PAGES _IOW('q', 4, int) |
|
#endif |
|
|
|
#endif /* KQEMU_H */ |
|
diff -ur qvm86.orig/qvm86-host.c qvm86/qvm86-host.c |
|
--- ./qvm86.orig/qvm86-host.c Tue Aug 23 20:14:20 2005 |
|
+++ ./qvm86/qvm86-host.c Tue Feb 14 20:57:01 2006 |
|
@@ -1209,9 +1209,19 @@ |
|
printk ("eax:%08x, ebx:%08x, ecx:%08x, edx:%08x\n", hostenv->regs[0], hostenv->regs[3], hostenv->regs[1], hostenv->regs[2]); |
|
printk ("esi:%08x, edi:%08x, ebp:%08x, esp:%08x\n", hostenv->regs[6], hostenv->regs[7], hostenv->regs[5], hostenv->regs[4]); |
|
} |
|
+ /* Awwwww......................... bullshit */ |
|
+ if (hostenv->cpl == 0) |
|
+ { |
|
+ hostenv->retval = KQEMU_RET_SOFTMMU; |
|
+ return KQEMU_RET_SOFTMMU; |
|
+ } |
|
+ |
|
/* We currently assume paging is enabled. */ |
|
if ((hostenv->cr0 & 0x80000000) == 0) |
|
+ { |
|
+ hostenv->retval = KQEMU_RET_SOFTMMU; |
|
return KQEMU_RET_SOFTMMU; |
|
+ } |
|
|
|
if (qs->guest_cr3 != hostenv->cr3) |
|
{ |
|
@@ -1252,11 +1262,15 @@ |
|
qvm86_clear_gdt_entries (qs, hostenv); |
|
|
|
if (i == 0x20) |
|
+ { |
|
+ hostenv->retval = KQEMU_RET_SOFTMMU; |
|
return KQEMU_RET_SOFTMMU; |
|
+ } |
|
else |
|
{ |
|
hostenv->error_code = i & 0xf; |
|
hostenv->cr2 = hostenv->segs[1].base + hostenv->eip; |
|
+ hostenv->retval = KQEMU_RET_EXCEPTION + 14; |
|
return KQEMU_RET_EXCEPTION + 14; |
|
} |
|
} |
|
@@ -1308,7 +1322,10 @@ |
|
|
|
/* Bail out if something went wrong. */ |
|
if (qs->die) |
|
+ { |
|
+ hostenv->retval = KQEMU_RET_ABORT; |
|
return KQEMU_RET_ABORT; |
|
+ } |
|
|
|
profile_timer(0); |
|
/* Setup monitor state. */ |
|
@@ -1365,6 +1382,7 @@ |
|
if (next_offset) |
|
hostenv->next_eip = hostenv->eip + next_offset; |
|
|
|
+ hostenv->retval = retval; /* for some reason kqemu.c requires this */ |
|
return retval; |
|
} |
|
|
|
@@ -1580,6 +1598,8 @@ |
|
qs->l1_phys_map = (uint32_t *) init->phys_to_ram_map; |
|
qs->phys_ram_dirty = init->ram_dirty; |
|
qs->pages_to_flush = init->pages_to_flush; |
|
+ qs->ram_pages_to_update = init->ram_pages_to_update; |
|
+ qs->modified_ram_pages = init->modified_ram_pages; |
|
qvm86_init_shadow (qs); |
|
qvm86_init_monitor_stack (qs); |
|
qvm86_create_monitor_gdt (qs); |
|
Only in qvm86: qvm86-host.o |
|
diff -ur qvm86.orig/qvm86-linux.c qvm86/qvm86-linux.c |
|
--- ./qvm86.orig/qvm86-linux.c Thu Jul 28 12:22:55 2005 |
|
+++ ./qvm86/qvm86-linux.c Tue Feb 14 20:14:15 2006 |
|
@@ -129,6 +129,7 @@ |
|
int ret; |
|
struct page *page; |
|
|
|
+ down_read(¤t->mm->mmap_sem); |
|
ret = get_user_pages(current, |
|
current->mm, |
|
(unsigned long) useraddr, |
|
@@ -138,6 +139,7 @@ |
|
&page, |
|
NULL /* struct vm_area_struct *[] */ |
|
); |
|
+ up_read(¤t->mm->mmap_sem); |
|
/* TODO: error handling. */ |
|
if (ret != 1) |
|
printk (KERN_ERR "qvm86: host_map_user failed\n"); |
|
@@ -231,6 +233,17 @@ |
|
case KQEMU_GET_VERSION: |
|
if (put_user(KQEMU_VERSION, (int *)arg) < 0) |
|
ret = -EFAULT; |
|
+ break; |
|
+ |
|
+// called by kqemu_modify_pages() |
|
+// modified_ram_pages are the pages that qemu had changed (by writing to) and hence are dirty |
|
+// for userspace (which we run directly) we could care less. |
|
+// kqemu probabaly only needs this for -kernel-kqemu - pages in ring 0 which |
|
+// contain code and are written to will need to be updated with the binary |
|
+// translator. Since we don't do kernel mode (yet) we can safely ignore this. |
|
+// Paul Brook: any ETA on real -kernel-kqemu support? |
|
+ |
|
+ case KQEMU_MODIFY_RAM_PAGES: |
|
break; |
|
|
|
default: |
|
Only in qvm86: qvm86-linux.o |
|
diff -ur qvm86.orig/qvm86.h qvm86/qvm86.h |
|
--- ./qvm86.orig/qvm86.h Thu Jul 28 12:22:55 2005 |
|
+++ ./qvm86/qvm86.h Tue Feb 14 20:47:32 2006 |
|
@@ -217,6 +217,10 @@ |
|
/* Emulator dirty memory flags. */ |
|
uint8_t *phys_ram_dirty; |
|
unsigned long *pages_to_flush; |
|
+ /* What does this do??? */ |
|
+ unsigned long *ram_pages_to_update; |
|
+ /* This isn't used, its needed for -kernel-kqemu only (not implemented yet) */ |
|
+ unsigned long *modified_ram_pages; |
|
/* Satus of mapped-in host pages. */ |
|
qvm86_mapped_page *host_physmem_map; |
|
|
|
|