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[PATCH-for-9.1 04/21] target/i386: Extract x86_dump_mmu() from hmp_info_
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From: |
Philippe Mathieu-Daudé |
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Subject: |
[PATCH-for-9.1 04/21] target/i386: Extract x86_dump_mmu() from hmp_info_tlb() |
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Date: |
Thu, 21 Mar 2024 16:48:20 +0100 |
hmp_info_tlb() is specific to tcg/system, move it to
target/i386/tcg/sysemu/hmp-cmds.c, along with the functions
it depend on (except addr_canonical() which is exposed in
"cpu.h").
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---
target/i386/cpu.h | 7 ++
target/i386/mmu.c | 231 ++++++++++++++++++++++++++++++++++++++++
target/i386/monitor.c | 215 -------------------------------------
target/i386/meson.build | 1 +
4 files changed, 239 insertions(+), 215 deletions(-)
create mode 100644 target/i386/mmu.c
diff --git a/target/i386/cpu.h b/target/i386/cpu.h
index 952174bb6f..055c5b99de 100644
--- a/target/i386/cpu.h
+++ b/target/i386/cpu.h
@@ -2342,6 +2342,13 @@ static inline int cpu_mmu_index_kernel(CPUX86State *env)
return mmu_index_base + mmu_index_32;
}
+#if !defined(CONFIG_USER_ONLY)
+void x86_dump_mmu(Monitor *mon, CPUX86State *env);
+
+/* Perform linear address sign extension */
+hwaddr addr_canonical(CPUArchState *env, hwaddr addr);
+#endif
+
#define CC_DST (env->cc_dst)
#define CC_SRC (env->cc_src)
#define CC_SRC2 (env->cc_src2)
diff --git a/target/i386/mmu.c b/target/i386/mmu.c
new file mode 100644
index 0000000000..da9b2263b4
--- /dev/null
+++ b/target/i386/mmu.c
@@ -0,0 +1,231 @@
+/*
+ * QEMU x86 MMU monitor commands
+ *
+ * Copyright (c) 2003-2004 Fabrice Bellard
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+#include "qemu/osdep.h"
+#include "monitor/monitor.h"
+#include "monitor/hmp-target.h"
+#include "cpu.h"
+
+hwaddr addr_canonical(CPUArchState *env, hwaddr addr)
+{
+#ifdef TARGET_X86_64
+ if (env->cr[4] & CR4_LA57_MASK) {
+ if (addr & (1ULL << 56)) {
+ addr |= (hwaddr)-(1LL << 57);
+ }
+ } else {
+ if (addr & (1ULL << 47)) {
+ addr |= (hwaddr)-(1LL << 48);
+ }
+ }
+#endif
+ return addr;
+}
+
+static void print_pte(Monitor *mon, CPUArchState *env, hwaddr addr,
+ hwaddr pte, hwaddr mask)
+{
+ addr = addr_canonical(env, addr);
+
+ monitor_printf(mon, HWADDR_FMT_plx ": " HWADDR_FMT_plx
+ " %c%c%c%c%c%c%c%c%c\n",
+ addr,
+ pte & mask,
+ pte & PG_NX_MASK ? 'X' : '-',
+ pte & PG_GLOBAL_MASK ? 'G' : '-',
+ pte & PG_PSE_MASK ? 'P' : '-',
+ pte & PG_DIRTY_MASK ? 'D' : '-',
+ pte & PG_ACCESSED_MASK ? 'A' : '-',
+ pte & PG_PCD_MASK ? 'C' : '-',
+ pte & PG_PWT_MASK ? 'T' : '-',
+ pte & PG_USER_MASK ? 'U' : '-',
+ pte & PG_RW_MASK ? 'W' : '-');
+}
+
+static void tlb_info_32(Monitor *mon, CPUArchState *env)
+{
+ unsigned int l1, l2;
+ uint32_t pgd, pde, pte;
+
+ pgd = env->cr[3] & ~0xfff;
+ for(l1 = 0; l1 < 1024; l1++) {
+ cpu_physical_memory_read(pgd + l1 * 4, &pde, 4);
+ pde = le32_to_cpu(pde);
+ if (pde & PG_PRESENT_MASK) {
+ if ((pde & PG_PSE_MASK) && (env->cr[4] & CR4_PSE_MASK)) {
+ /* 4M pages */
+ print_pte(mon, env, (l1 << 22), pde, ~((1 << 21) - 1));
+ } else {
+ for(l2 = 0; l2 < 1024; l2++) {
+ cpu_physical_memory_read((pde & ~0xfff) + l2 * 4, &pte, 4);
+ pte = le32_to_cpu(pte);
+ if (pte & PG_PRESENT_MASK) {
+ print_pte(mon, env, (l1 << 22) + (l2 << 12),
+ pte & ~PG_PSE_MASK,
+ ~0xfff);
+ }
+ }
+ }
+ }
+ }
+}
+
+static void tlb_info_pae32(Monitor *mon, CPUArchState *env)
+{
+ unsigned int l1, l2, l3;
+ uint64_t pdpe, pde, pte;
+ uint64_t pdp_addr, pd_addr, pt_addr;
+
+ pdp_addr = env->cr[3] & ~0x1f;
+ for (l1 = 0; l1 < 4; l1++) {
+ cpu_physical_memory_read(pdp_addr + l1 * 8, &pdpe, 8);
+ pdpe = le64_to_cpu(pdpe);
+ if (pdpe & PG_PRESENT_MASK) {
+ pd_addr = pdpe & 0x3fffffffff000ULL;
+ for (l2 = 0; l2 < 512; l2++) {
+ cpu_physical_memory_read(pd_addr + l2 * 8, &pde, 8);
+ pde = le64_to_cpu(pde);
+ if (pde & PG_PRESENT_MASK) {
+ if (pde & PG_PSE_MASK) {
+ /* 2M pages with PAE, CR4.PSE is ignored */
+ print_pte(mon, env, (l1 << 30) + (l2 << 21), pde,
+ ~((hwaddr)(1 << 20) - 1));
+ } else {
+ pt_addr = pde & 0x3fffffffff000ULL;
+ for (l3 = 0; l3 < 512; l3++) {
+ cpu_physical_memory_read(pt_addr + l3 * 8, &pte,
8);
+ pte = le64_to_cpu(pte);
+ if (pte & PG_PRESENT_MASK) {
+ print_pte(mon, env, (l1 << 30) + (l2 << 21)
+ + (l3 << 12),
+ pte & ~PG_PSE_MASK,
+ ~(hwaddr)0xfff);
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+}
+
+#ifdef TARGET_X86_64
+static void tlb_info_la48(Monitor *mon, CPUArchState *env,
+ uint64_t l0, uint64_t pml4_addr)
+{
+ uint64_t l1, l2, l3, l4;
+ uint64_t pml4e, pdpe, pde, pte;
+ uint64_t pdp_addr, pd_addr, pt_addr;
+
+ for (l1 = 0; l1 < 512; l1++) {
+ cpu_physical_memory_read(pml4_addr + l1 * 8, &pml4e, 8);
+ pml4e = le64_to_cpu(pml4e);
+ if (!(pml4e & PG_PRESENT_MASK)) {
+ continue;
+ }
+
+ pdp_addr = pml4e & 0x3fffffffff000ULL;
+ for (l2 = 0; l2 < 512; l2++) {
+ cpu_physical_memory_read(pdp_addr + l2 * 8, &pdpe, 8);
+ pdpe = le64_to_cpu(pdpe);
+ if (!(pdpe & PG_PRESENT_MASK)) {
+ continue;
+ }
+
+ if (pdpe & PG_PSE_MASK) {
+ /* 1G pages, CR4.PSE is ignored */
+ print_pte(mon, env, (l0 << 48) + (l1 << 39) + (l2 << 30),
+ pdpe, 0x3ffffc0000000ULL);
+ continue;
+ }
+
+ pd_addr = pdpe & 0x3fffffffff000ULL;
+ for (l3 = 0; l3 < 512; l3++) {
+ cpu_physical_memory_read(pd_addr + l3 * 8, &pde, 8);
+ pde = le64_to_cpu(pde);
+ if (!(pde & PG_PRESENT_MASK)) {
+ continue;
+ }
+
+ if (pde & PG_PSE_MASK) {
+ /* 2M pages, CR4.PSE is ignored */
+ print_pte(mon, env, (l0 << 48) + (l1 << 39) + (l2 << 30) +
+ (l3 << 21), pde, 0x3ffffffe00000ULL);
+ continue;
+ }
+
+ pt_addr = pde & 0x3fffffffff000ULL;
+ for (l4 = 0; l4 < 512; l4++) {
+ cpu_physical_memory_read(pt_addr
+ + l4 * 8,
+ &pte, 8);
+ pte = le64_to_cpu(pte);
+ if (pte & PG_PRESENT_MASK) {
+ print_pte(mon, env, (l0 << 48) + (l1 << 39) +
+ (l2 << 30) + (l3 << 21) + (l4 << 12),
+ pte & ~PG_PSE_MASK, 0x3fffffffff000ULL);
+ }
+ }
+ }
+ }
+ }
+}
+
+static void tlb_info_la57(Monitor *mon, CPUArchState *env)
+{
+ uint64_t l0;
+ uint64_t pml5e;
+ uint64_t pml5_addr;
+
+ pml5_addr = env->cr[3] & 0x3fffffffff000ULL;
+ for (l0 = 0; l0 < 512; l0++) {
+ cpu_physical_memory_read(pml5_addr + l0 * 8, &pml5e, 8);
+ pml5e = le64_to_cpu(pml5e);
+ if (pml5e & PG_PRESENT_MASK) {
+ tlb_info_la48(mon, env, l0, pml5e & 0x3fffffffff000ULL);
+ }
+ }
+}
+#endif /* TARGET_X86_64 */
+
+void x86_dump_mmu(Monitor *mon, CPUX86State *env)
+{
+ if (!(env->cr[0] & CR0_PG_MASK)) {
+ monitor_printf(mon, "PG disabled\n");
+ return;
+ }
+ if (env->cr[4] & CR4_PAE_MASK) {
+#ifdef TARGET_X86_64
+ if (env->hflags & HF_LMA_MASK) {
+ if (env->cr[4] & CR4_LA57_MASK) {
+ tlb_info_la57(mon, env);
+ } else {
+ tlb_info_la48(mon, env, 0, env->cr[3] & 0x3fffffffff000ULL);
+ }
+ } else
+#endif
+ {
+ tlb_info_pae32(mon, env);
+ }
+ } else {
+ tlb_info_32(mon, env);
+ }
+}
+
+void hmp_info_tlb(Monitor *mon, const QDict *qdict)
+{
+ CPUArchState *env;
+
+ env = mon_get_cpu_env(mon);
+ if (!env) {
+ monitor_printf(mon, "No CPU available\n");
+ return;
+ }
+
+ x86_dump_mmu(mon, env);
+}
diff --git a/target/i386/monitor.c b/target/i386/monitor.c
index 2d766b2637..fa155ac3c9 100644
--- a/target/i386/monitor.c
+++ b/target/i386/monitor.c
@@ -32,221 +32,6 @@
#include "qapi/qapi-commands-misc-target.h"
#include "qapi/qapi-commands-misc.h"
-/* Perform linear address sign extension */
-static hwaddr addr_canonical(CPUArchState *env, hwaddr addr)
-{
-#ifdef TARGET_X86_64
- if (env->cr[4] & CR4_LA57_MASK) {
- if (addr & (1ULL << 56)) {
- addr |= (hwaddr)-(1LL << 57);
- }
- } else {
- if (addr & (1ULL << 47)) {
- addr |= (hwaddr)-(1LL << 48);
- }
- }
-#endif
- return addr;
-}
-
-static void print_pte(Monitor *mon, CPUArchState *env, hwaddr addr,
- hwaddr pte, hwaddr mask)
-{
- addr = addr_canonical(env, addr);
-
- monitor_printf(mon, HWADDR_FMT_plx ": " HWADDR_FMT_plx
- " %c%c%c%c%c%c%c%c%c\n",
- addr,
- pte & mask,
- pte & PG_NX_MASK ? 'X' : '-',
- pte & PG_GLOBAL_MASK ? 'G' : '-',
- pte & PG_PSE_MASK ? 'P' : '-',
- pte & PG_DIRTY_MASK ? 'D' : '-',
- pte & PG_ACCESSED_MASK ? 'A' : '-',
- pte & PG_PCD_MASK ? 'C' : '-',
- pte & PG_PWT_MASK ? 'T' : '-',
- pte & PG_USER_MASK ? 'U' : '-',
- pte & PG_RW_MASK ? 'W' : '-');
-}
-
-static void tlb_info_32(Monitor *mon, CPUArchState *env)
-{
- unsigned int l1, l2;
- uint32_t pgd, pde, pte;
-
- pgd = env->cr[3] & ~0xfff;
- for(l1 = 0; l1 < 1024; l1++) {
- cpu_physical_memory_read(pgd + l1 * 4, &pde, 4);
- pde = le32_to_cpu(pde);
- if (pde & PG_PRESENT_MASK) {
- if ((pde & PG_PSE_MASK) && (env->cr[4] & CR4_PSE_MASK)) {
- /* 4M pages */
- print_pte(mon, env, (l1 << 22), pde, ~((1 << 21) - 1));
- } else {
- for(l2 = 0; l2 < 1024; l2++) {
- cpu_physical_memory_read((pde & ~0xfff) + l2 * 4, &pte, 4);
- pte = le32_to_cpu(pte);
- if (pte & PG_PRESENT_MASK) {
- print_pte(mon, env, (l1 << 22) + (l2 << 12),
- pte & ~PG_PSE_MASK,
- ~0xfff);
- }
- }
- }
- }
- }
-}
-
-static void tlb_info_pae32(Monitor *mon, CPUArchState *env)
-{
- unsigned int l1, l2, l3;
- uint64_t pdpe, pde, pte;
- uint64_t pdp_addr, pd_addr, pt_addr;
-
- pdp_addr = env->cr[3] & ~0x1f;
- for (l1 = 0; l1 < 4; l1++) {
- cpu_physical_memory_read(pdp_addr + l1 * 8, &pdpe, 8);
- pdpe = le64_to_cpu(pdpe);
- if (pdpe & PG_PRESENT_MASK) {
- pd_addr = pdpe & 0x3fffffffff000ULL;
- for (l2 = 0; l2 < 512; l2++) {
- cpu_physical_memory_read(pd_addr + l2 * 8, &pde, 8);
- pde = le64_to_cpu(pde);
- if (pde & PG_PRESENT_MASK) {
- if (pde & PG_PSE_MASK) {
- /* 2M pages with PAE, CR4.PSE is ignored */
- print_pte(mon, env, (l1 << 30) + (l2 << 21), pde,
- ~((hwaddr)(1 << 20) - 1));
- } else {
- pt_addr = pde & 0x3fffffffff000ULL;
- for (l3 = 0; l3 < 512; l3++) {
- cpu_physical_memory_read(pt_addr + l3 * 8, &pte,
8);
- pte = le64_to_cpu(pte);
- if (pte & PG_PRESENT_MASK) {
- print_pte(mon, env, (l1 << 30) + (l2 << 21)
- + (l3 << 12),
- pte & ~PG_PSE_MASK,
- ~(hwaddr)0xfff);
- }
- }
- }
- }
- }
- }
- }
-}
-
-#ifdef TARGET_X86_64
-static void tlb_info_la48(Monitor *mon, CPUArchState *env,
- uint64_t l0, uint64_t pml4_addr)
-{
- uint64_t l1, l2, l3, l4;
- uint64_t pml4e, pdpe, pde, pte;
- uint64_t pdp_addr, pd_addr, pt_addr;
-
- for (l1 = 0; l1 < 512; l1++) {
- cpu_physical_memory_read(pml4_addr + l1 * 8, &pml4e, 8);
- pml4e = le64_to_cpu(pml4e);
- if (!(pml4e & PG_PRESENT_MASK)) {
- continue;
- }
-
- pdp_addr = pml4e & 0x3fffffffff000ULL;
- for (l2 = 0; l2 < 512; l2++) {
- cpu_physical_memory_read(pdp_addr + l2 * 8, &pdpe, 8);
- pdpe = le64_to_cpu(pdpe);
- if (!(pdpe & PG_PRESENT_MASK)) {
- continue;
- }
-
- if (pdpe & PG_PSE_MASK) {
- /* 1G pages, CR4.PSE is ignored */
- print_pte(mon, env, (l0 << 48) + (l1 << 39) + (l2 << 30),
- pdpe, 0x3ffffc0000000ULL);
- continue;
- }
-
- pd_addr = pdpe & 0x3fffffffff000ULL;
- for (l3 = 0; l3 < 512; l3++) {
- cpu_physical_memory_read(pd_addr + l3 * 8, &pde, 8);
- pde = le64_to_cpu(pde);
- if (!(pde & PG_PRESENT_MASK)) {
- continue;
- }
-
- if (pde & PG_PSE_MASK) {
- /* 2M pages, CR4.PSE is ignored */
- print_pte(mon, env, (l0 << 48) + (l1 << 39) + (l2 << 30) +
- (l3 << 21), pde, 0x3ffffffe00000ULL);
- continue;
- }
-
- pt_addr = pde & 0x3fffffffff000ULL;
- for (l4 = 0; l4 < 512; l4++) {
- cpu_physical_memory_read(pt_addr
- + l4 * 8,
- &pte, 8);
- pte = le64_to_cpu(pte);
- if (pte & PG_PRESENT_MASK) {
- print_pte(mon, env, (l0 << 48) + (l1 << 39) +
- (l2 << 30) + (l3 << 21) + (l4 << 12),
- pte & ~PG_PSE_MASK, 0x3fffffffff000ULL);
- }
- }
- }
- }
- }
-}
-
-static void tlb_info_la57(Monitor *mon, CPUArchState *env)
-{
- uint64_t l0;
- uint64_t pml5e;
- uint64_t pml5_addr;
-
- pml5_addr = env->cr[3] & 0x3fffffffff000ULL;
- for (l0 = 0; l0 < 512; l0++) {
- cpu_physical_memory_read(pml5_addr + l0 * 8, &pml5e, 8);
- pml5e = le64_to_cpu(pml5e);
- if (pml5e & PG_PRESENT_MASK) {
- tlb_info_la48(mon, env, l0, pml5e & 0x3fffffffff000ULL);
- }
- }
-}
-#endif /* TARGET_X86_64 */
-
-void hmp_info_tlb(Monitor *mon, const QDict *qdict)
-{
- CPUArchState *env;
-
- env = mon_get_cpu_env(mon);
- if (!env) {
- monitor_printf(mon, "No CPU available\n");
- return;
- }
-
- if (!(env->cr[0] & CR0_PG_MASK)) {
- monitor_printf(mon, "PG disabled\n");
- return;
- }
- if (env->cr[4] & CR4_PAE_MASK) {
-#ifdef TARGET_X86_64
- if (env->hflags & HF_LMA_MASK) {
- if (env->cr[4] & CR4_LA57_MASK) {
- tlb_info_la57(mon, env);
- } else {
- tlb_info_la48(mon, env, 0, env->cr[3] & 0x3fffffffff000ULL);
- }
- } else
-#endif
- {
- tlb_info_pae32(mon, env);
- }
- } else {
- tlb_info_32(mon, env);
- }
-}
-
static void mem_print(Monitor *mon, CPUArchState *env,
hwaddr *pstart, int *plast_prot,
hwaddr end, int prot)
diff --git a/target/i386/meson.build b/target/i386/meson.build
index ba8dc68a34..6c6f383e2e 100644
--- a/target/i386/meson.build
+++ b/target/i386/meson.build
@@ -18,6 +18,7 @@ i386_system_ss.add(files(
'arch_memory_mapping.c',
'machine.c',
'monitor.c',
+ 'mmu.c',
'cpu-apic.c',
'cpu-sysemu.c',
))
--
2.41.0
[PATCH-for-9.1 06/21] target/m68k: Have dump_ttr() take a @description argument, Philippe Mathieu-Daudé, 2024/03/21
[PATCH-for-9.1 07/21] target/m68k: Move MMU monitor commands from helper.c to monitor.c, Philippe Mathieu-Daudé, 2024/03/21