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[Qemu-devel] [PATCH] i386/monitor.c: make addresses canonical for "info
|
From: |
Doug Gale |
|
Subject: |
[Qemu-devel] [PATCH] i386/monitor.c: make addresses canonical for "info mem" and "info tlb" |
|
Date: |
Sun, 17 Jun 2018 04:40:25 -0400 |
Correct the output of the "info mem" and "info tlb" monitor commands to
correctly show canonical addresses.
In 48-bit addressing mode, the upper 16 bits of linear addresses are
equal to bit 47. In 57-bit addressing mode (LA57), the upper 7 bits of
linear addresses are equal to bit 56.
Signed-off-by: Doug Gale <address@hidden>
---
target/i386/monitor.c | 76 +++++++++++++++++++++++++------------------
1 file changed, 44 insertions(+), 32 deletions(-)
diff --git a/target/i386/monitor.c b/target/i386/monitor.c
index a890b3c2ab..99c97a63e2 100644
--- a/target/i386/monitor.c
+++ b/target/i386/monitor.c
@@ -35,21 +35,28 @@
#include "sev_i386.h"
#include "qapi/qapi-commands-misc.h"
-
-static void print_pte(Monitor *mon, CPUArchState *env, hwaddr addr,
- hwaddr pte, hwaddr mask)
+/* 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 |= -1LL << 57;
+ addr |= (hwaddr)-(1LL << 57);
}
} else {
if (addr & (1ULL << 47)) {
- addr |= -1LL << 48;
+ 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, TARGET_FMT_plx ": " TARGET_FMT_plx
" %c%c%c%c%c%c%c%c%c\n",
addr,
@@ -243,8 +250,8 @@ void hmp_info_tlb(Monitor *mon, const QDict *qdict)
}
}
-static void mem_print(Monitor *mon, hwaddr *pstart,
- int *plast_prot,
+static void mem_print(Monitor *mon, CPUArchState *env,
+ hwaddr *pstart, int *plast_prot,
hwaddr end, int prot)
{
int prot1;
@@ -253,7 +260,9 @@ static void mem_print(Monitor *mon, hwaddr *pstart,
if (*pstart != -1) {
monitor_printf(mon, TARGET_FMT_plx "-" TARGET_FMT_plx " "
TARGET_FMT_plx " %c%c%c\n",
- *pstart, end, end - *pstart,
+ addr_canonical(env, *pstart),
+ addr_canonical(env, end),
+ addr_canonical(env, end - *pstart),
prot1 & PG_USER_MASK ? 'u' : '-',
'r',
prot1 & PG_RW_MASK ? 'w' : '-');
@@ -283,7 +292,7 @@ static void mem_info_32(Monitor *mon, CPUArchState *env)
if (pde & PG_PRESENT_MASK) {
if ((pde & PG_PSE_MASK) && (env->cr[4] & CR4_PSE_MASK)) {
prot = pde & (PG_USER_MASK | PG_RW_MASK | PG_PRESENT_MASK);
- mem_print(mon, &start, &last_prot, end, prot);
+ mem_print(mon, env, &start, &last_prot, end, prot);
} else {
for(l2 = 0; l2 < 1024; l2++) {
cpu_physical_memory_read((pde & ~0xfff) + l2 * 4, &pte, 4);
@@ -295,16 +304,16 @@ static void mem_info_32(Monitor *mon, CPUArchState *env)
} else {
prot = 0;
}
- mem_print(mon, &start, &last_prot, end, prot);
+ mem_print(mon, env, &start, &last_prot, end, prot);
}
}
} else {
prot = 0;
- mem_print(mon, &start, &last_prot, end, prot);
+ mem_print(mon, env, &start, &last_prot, end, prot);
}
}
/* Flush last range */
- mem_print(mon, &start, &last_prot, (hwaddr)1 << 32, 0);
+ mem_print(mon, env, &start, &last_prot, (hwaddr)1 << 32, 0);
}
static void mem_info_pae32(Monitor *mon, CPUArchState *env)
@@ -332,7 +341,7 @@ static void mem_info_pae32(Monitor *mon, CPUArchState *env)
if (pde & PG_PSE_MASK) {
prot = pde & (PG_USER_MASK | PG_RW_MASK |
PG_PRESENT_MASK);
- mem_print(mon, &start, &last_prot, end, prot);
+ mem_print(mon, env, &start, &last_prot, end, prot);
} else {
pt_addr = pde & 0x3fffffffff000ULL;
for (l3 = 0; l3 < 512; l3++) {
@@ -345,21 +354,21 @@ static void mem_info_pae32(Monitor *mon, CPUArchState
*env)
} else {
prot = 0;
}
- mem_print(mon, &start, &last_prot, end, prot);
+ mem_print(mon, env, &start, &last_prot, end, prot);
}
}
} else {
prot = 0;
- mem_print(mon, &start, &last_prot, end, prot);
+ mem_print(mon, env, &start, &last_prot, end, prot);
}
}
} else {
prot = 0;
- mem_print(mon, &start, &last_prot, end, prot);
+ mem_print(mon, env, &start, &last_prot, end, prot);
}
}
/* Flush last range */
- mem_print(mon, &start, &last_prot, (hwaddr)1 << 32, 0);
+ mem_print(mon, env, &start, &last_prot, (hwaddr)1 << 32, 0);
}
@@ -389,7 +398,7 @@ static void mem_info_la48(Monitor *mon, CPUArchState *env)
prot = pdpe & (PG_USER_MASK | PG_RW_MASK |
PG_PRESENT_MASK);
prot &= pml4e;
- mem_print(mon, &start, &last_prot, end, prot);
+ mem_print(mon, env, &start, &last_prot, end, prot);
} else {
pd_addr = pdpe & 0x3fffffffff000ULL;
for (l3 = 0; l3 < 512; l3++) {
@@ -401,7 +410,8 @@ static void mem_info_la48(Monitor *mon, CPUArchState *env)
prot = pde & (PG_USER_MASK | PG_RW_MASK |
PG_PRESENT_MASK);
prot &= pml4e & pdpe;
- mem_print(mon, &start, &last_prot, end,
prot);
+ mem_print(mon, env, &start,
+ &last_prot, end, prot);
} else {
pt_addr = pde & 0x3fffffffff000ULL;
for (l4 = 0; l4 < 512; l4++) {
@@ -418,27 +428,29 @@ static void mem_info_la48(Monitor *mon, CPUArchState *env)
} else {
prot = 0;
}
- mem_print(mon, &start, &last_prot,
end, prot);
+ mem_print(mon, env, &start,
+ &last_prot, end, prot);
}
}
} else {
prot = 0;
- mem_print(mon, &start, &last_prot, end, prot);
+ mem_print(mon, env, &start,
+ &last_prot, end, prot);
}
}
}
} else {
prot = 0;
- mem_print(mon, &start, &last_prot, end, prot);
+ mem_print(mon, env, &start, &last_prot, end, prot);
}
}
} else {
prot = 0;
- mem_print(mon, &start, &last_prot, end, prot);
+ mem_print(mon, env, &start, &last_prot, end, prot);
}
}
/* Flush last range */
- mem_print(mon, &start, &last_prot, (hwaddr)1 << 48, 0);
+ mem_print(mon, env, &start, &last_prot, (hwaddr)1 << 48, 0);
}
static void mem_info_la57(Monitor *mon, CPUArchState *env)
@@ -457,7 +469,7 @@ static void mem_info_la57(Monitor *mon, CPUArchState *env)
end = l0 << 48;
if (!(pml5e & PG_PRESENT_MASK)) {
prot = 0;
- mem_print(mon, &start, &last_prot, end, prot);
+ mem_print(mon, env, &start, &last_prot, end, prot);
continue;
}
@@ -468,7 +480,7 @@ static void mem_info_la57(Monitor *mon, CPUArchState *env)
end = (l0 << 48) + (l1 << 39);
if (!(pml4e & PG_PRESENT_MASK)) {
prot = 0;
- mem_print(mon, &start, &last_prot, end, prot);
+ mem_print(mon, env, &start, &last_prot, end, prot);
continue;
}
@@ -479,7 +491,7 @@ static void mem_info_la57(Monitor *mon, CPUArchState *env)
end = (l0 << 48) + (l1 << 39) + (l2 << 30);
if (pdpe & PG_PRESENT_MASK) {
prot = 0;
- mem_print(mon, &start, &last_prot, end, prot);
+ mem_print(mon, env, &start, &last_prot, end, prot);
continue;
}
@@ -487,7 +499,7 @@ static void mem_info_la57(Monitor *mon, CPUArchState *env)
prot = pdpe & (PG_USER_MASK | PG_RW_MASK |
PG_PRESENT_MASK);
prot &= pml5e & pml4e;
- mem_print(mon, &start, &last_prot, end, prot);
+ mem_print(mon, env, &start, &last_prot, end, prot);
continue;
}
@@ -498,7 +510,7 @@ static void mem_info_la57(Monitor *mon, CPUArchState *env)
end = (l0 << 48) + (l1 << 39) + (l2 << 30) + (l3 << 21);
if (pde & PG_PRESENT_MASK) {
prot = 0;
- mem_print(mon, &start, &last_prot, end, prot);
+ mem_print(mon, env, &start, &last_prot, end, prot);
continue;
}
@@ -506,7 +518,7 @@ static void mem_info_la57(Monitor *mon, CPUArchState *env)
prot = pde & (PG_USER_MASK | PG_RW_MASK |
PG_PRESENT_MASK);
prot &= pml5e & pml4e & pdpe;
- mem_print(mon, &start, &last_prot, end, prot);
+ mem_print(mon, env, &start, &last_prot, end, prot);
continue;
}
@@ -523,14 +535,14 @@ static void mem_info_la57(Monitor *mon, CPUArchState *env)
} else {
prot = 0;
}
- mem_print(mon, &start, &last_prot, end, prot);
+ mem_print(mon, env, &start, &last_prot, end, prot);
}
}
}
}
}
/* Flush last range */
- mem_print(mon, &start, &last_prot, (hwaddr)1 << 57, 0);
+ mem_print(mon, env, &start, &last_prot, (hwaddr)1 << 57, 0);
}
#endif /* TARGET_X86_64 */
--
2.17.1
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