mirrors/qemu
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Merge branch 'target-arm.for-upstream' of git://git.linaro.org/people/pmaydell/qemu-arm

Browse Source
This commit is contained in:
Andrzej Zaborowski 2011-12-14 21:34:00 +01:00
commit 23ce84b1bb
1 changed files with 42 additions and 53 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

95
target-arm/helper.c
View File

@ -53,7 +53,6 @@ static void cpu_reset_model_id(CPUARMState *env, uint32_t id)
env->cp15.c0_cpuid = id;
switch (id) {
case ARM_CPUID_ARM926:
set_feature(env, ARM_FEATURE_V4T);
set_feature(env, ARM_FEATURE_V5);
set_feature(env, ARM_FEATURE_VFP);
env->vfp.xregs[ARM_VFP_FPSID] = 0x41011090;
@ -61,14 +60,12 @@ static void cpu_reset_model_id(CPUARMState *env, uint32_t id)
env->cp15.c1_sys = 0x00090078;
break;
case ARM_CPUID_ARM946:
set_feature(env, ARM_FEATURE_V4T);
set_feature(env, ARM_FEATURE_V5);
set_feature(env, ARM_FEATURE_MPU);
env->cp15.c0_cachetype = 0x0f004006;
env->cp15.c1_sys = 0x00000078;
break;
case ARM_CPUID_ARM1026:
set_feature(env, ARM_FEATURE_V4T);
set_feature(env, ARM_FEATURE_V5);
set_feature(env, ARM_FEATURE_VFP);
set_feature(env, ARM_FEATURE_AUXCR);
@ -85,11 +82,8 @@ static void cpu_reset_model_id(CPUARMState *env, uint32_t id)
* older core than plain "arm1136". In particular this does not
* have the v6K features.
*/
set_feature(env, ARM_FEATURE_V4T);
set_feature(env, ARM_FEATURE_V5);
set_feature(env, ARM_FEATURE_V6);
set_feature(env, ARM_FEATURE_VFP);
set_feature(env, ARM_FEATURE_AUXCR);
/* These ID register values are correct for 1136 but may be wrong
* for 1136_r2 (in particular r0p2 does not actually implement most
* of the ID registers).
@ -103,12 +97,8 @@ static void cpu_reset_model_id(CPUARMState *env, uint32_t id)
env->cp15.c1_sys = 0x00050078;
break;
case ARM_CPUID_ARM1176:
set_feature(env, ARM_FEATURE_V4T);
set_feature(env, ARM_FEATURE_V5);
set_feature(env, ARM_FEATURE_V6);
set_feature(env, ARM_FEATURE_V6K);
set_feature(env, ARM_FEATURE_VFP);
set_feature(env, ARM_FEATURE_AUXCR);
set_feature(env, ARM_FEATURE_VAPA);
env->vfp.xregs[ARM_VFP_FPSID] = 0x410120b5;
env->vfp.xregs[ARM_VFP_MVFR0] = 0x11111111;
@ -119,12 +109,8 @@ static void cpu_reset_model_id(CPUARMState *env, uint32_t id)
env->cp15.c1_sys = 0x00050078;
break;
case ARM_CPUID_ARM11MPCORE:
set_feature(env, ARM_FEATURE_V4T);
set_feature(env, ARM_FEATURE_V5);
set_feature(env, ARM_FEATURE_V6);
set_feature(env, ARM_FEATURE_V6K);
set_feature(env, ARM_FEATURE_VFP);
set_feature(env, ARM_FEATURE_AUXCR);
set_feature(env, ARM_FEATURE_VAPA);
env->vfp.xregs[ARM_VFP_FPSID] = 0x410120b4;
env->vfp.xregs[ARM_VFP_MVFR0] = 0x11111111;
@ -134,14 +120,7 @@ static void cpu_reset_model_id(CPUARMState *env, uint32_t id)
env->cp15.c0_cachetype = 0x1dd20d2;
break;
case ARM_CPUID_CORTEXA8:
set_feature(env, ARM_FEATURE_V4T);
set_feature(env, ARM_FEATURE_V5);
set_feature(env, ARM_FEATURE_V6);
set_feature(env, ARM_FEATURE_V6K);
set_feature(env, ARM_FEATURE_V7);
set_feature(env, ARM_FEATURE_AUXCR);
set_feature(env, ARM_FEATURE_THUMB2);
set_feature(env, ARM_FEATURE_VFP);
set_feature(env, ARM_FEATURE_VFP3);
set_feature(env, ARM_FEATURE_NEON);
set_feature(env, ARM_FEATURE_THUMB2EE);
@ -158,14 +137,7 @@ static void cpu_reset_model_id(CPUARMState *env, uint32_t id)
env->cp15.c1_sys = 0x00c50078;
break;
case ARM_CPUID_CORTEXA9:
set_feature(env, ARM_FEATURE_V4T);
set_feature(env, ARM_FEATURE_V5);
set_feature(env, ARM_FEATURE_V6);
set_feature(env, ARM_FEATURE_V6K);
set_feature(env, ARM_FEATURE_V7);
set_feature(env, ARM_FEATURE_AUXCR);
set_feature(env, ARM_FEATURE_THUMB2);
set_feature(env, ARM_FEATURE_VFP);
set_feature(env, ARM_FEATURE_VFP3);
set_feature(env, ARM_FEATURE_VFP_FP16);
set_feature(env, ARM_FEATURE_NEON);
@ -187,23 +159,11 @@ static void cpu_reset_model_id(CPUARMState *env, uint32_t id)
env->cp15.c1_sys = 0x00c50078;
break;
case ARM_CPUID_CORTEXM3:
set_feature(env, ARM_FEATURE_V4T);
set_feature(env, ARM_FEATURE_V5);
set_feature(env, ARM_FEATURE_V6);
set_feature(env, ARM_FEATURE_THUMB2);
set_feature(env, ARM_FEATURE_V7);
set_feature(env, ARM_FEATURE_M);
set_feature(env, ARM_FEATURE_THUMB_DIV);
break;
case ARM_CPUID_ANY: /* For userspace emulation. */
set_feature(env, ARM_FEATURE_V4T);
set_feature(env, ARM_FEATURE_V5);
set_feature(env, ARM_FEATURE_V6);
set_feature(env, ARM_FEATURE_V6K);
set_feature(env, ARM_FEATURE_V7);
set_feature(env, ARM_FEATURE_THUMB2);
set_feature(env, ARM_FEATURE_VFP);
set_feature(env, ARM_FEATURE_VFP3);
set_feature(env, ARM_FEATURE_VFP4);
set_feature(env, ARM_FEATURE_VFP_FP16);
set_feature(env, ARM_FEATURE_NEON);
@ -226,7 +186,6 @@ static void cpu_reset_model_id(CPUARMState *env, uint32_t id)
case ARM_CPUID_PXA260:
case ARM_CPUID_PXA261:
case ARM_CPUID_PXA262:
set_feature(env, ARM_FEATURE_V4T);
set_feature(env, ARM_FEATURE_V5);
set_feature(env, ARM_FEATURE_XSCALE);
/* JTAG_ID is ((id << 28) | 0x09265013) */
@ -239,7 +198,6 @@ static void cpu_reset_model_id(CPUARMState *env, uint32_t id)
case ARM_CPUID_PXA270_B1:
case ARM_CPUID_PXA270_C0:
case ARM_CPUID_PXA270_C5:
set_feature(env, ARM_FEATURE_V4T);
set_feature(env, ARM_FEATURE_V5);
set_feature(env, ARM_FEATURE_XSCALE);
/* JTAG_ID is ((id << 28) | 0x09265013) */
@ -261,10 +219,37 @@ static void cpu_reset_model_id(CPUARMState *env, uint32_t id)
/* Some features automatically imply others: */
if (arm_feature(env, ARM_FEATURE_V7)) {
set_feature(env, ARM_FEATURE_VAPA);
set_feature(env, ARM_FEATURE_THUMB2);
if (!arm_feature(env, ARM_FEATURE_M)) {
set_feature(env, ARM_FEATURE_V6K);
} else {
set_feature(env, ARM_FEATURE_V6);
}
}
if (arm_feature(env, ARM_FEATURE_V6K)) {
set_feature(env, ARM_FEATURE_V6);
}
if (arm_feature(env, ARM_FEATURE_V6)) {
set_feature(env, ARM_FEATURE_V5);
if (!arm_feature(env, ARM_FEATURE_M)) {
set_feature(env, ARM_FEATURE_AUXCR);
}
}
if (arm_feature(env, ARM_FEATURE_V5)) {
set_feature(env, ARM_FEATURE_V4T);
}
if (arm_feature(env, ARM_FEATURE_M)) {
set_feature(env, ARM_FEATURE_THUMB_DIV);
}
if (arm_feature(env, ARM_FEATURE_ARM_DIV)) {
set_feature(env, ARM_FEATURE_THUMB_DIV);
}
if (arm_feature(env, ARM_FEATURE_VFP4)) {
set_feature(env, ARM_FEATURE_VFP3);
}
if (arm_feature(env, ARM_FEATURE_VFP3)) {
set_feature(env, ARM_FEATURE_VFP);
}
}
void cpu_reset(CPUARMState *env)
@ -951,13 +936,14 @@ void do_interrupt(CPUARMState *env)
/* Check section/page access permissions.
Returns the page protection flags, or zero if the access is not
permitted. */
static inline int check_ap(CPUState *env, int ap, int domain, int access_type,
int is_user)
static inline int check_ap(CPUState *env, int ap, int domain_prot,
int access_type, int is_user)
{
int prot_ro;
if (domain == 3)
if (domain_prot == 3) {
return PAGE_READ | PAGE_WRITE;
}
if (access_type == 1)
prot_ro = 0;
@ -1023,6 +1009,7 @@ static int get_phys_addr_v5(CPUState *env, uint32_t address, int access_type,
int type;
int ap;
int domain;
int domain_prot;
uint32_t phys_addr;
/* Pagetable walk. */
@ -1030,13 +1017,14 @@ static int get_phys_addr_v5(CPUState *env, uint32_t address, int access_type,
table = get_level1_table_address(env, address);
desc = ldl_phys(table);
type = (desc & 3);
domain = (env->cp15.c3 >> ((desc >> 4) & 0x1e)) & 3;
domain = (desc >> 5) & 0x0f;
domain_prot = (env->cp15.c3 >> (domain * 2)) & 3;
if (type == 0) {
/* Section translation fault. */
code = 5;
goto do_fault;
}
if (domain == 0 || domain == 2) {
if (domain_prot == 0 || domain_prot == 2) {
if (type == 2)
code = 9; /* Section domain fault. */
else
@ -1094,7 +1082,7 @@ static int get_phys_addr_v5(CPUState *env, uint32_t address, int access_type,
}
code = 15;
}
*prot = check_ap(env, ap, domain, access_type, is_user);
*prot = check_ap(env, ap, domain_prot, access_type, is_user);
if (!*prot) {
/* Access permission fault. */
goto do_fault;
@ -1117,6 +1105,7 @@ static int get_phys_addr_v6(CPUState *env, uint32_t address, int access_type,
int type;
int ap;
int domain;
int domain_prot;
uint32_t phys_addr;
/* Pagetable walk. */
@ -1134,10 +1123,10 @@ static int get_phys_addr_v6(CPUState *env, uint32_t address, int access_type,
domain = 0;
} else {
/* Section or page. */
domain = (desc >> 4) & 0x1e;
domain = (desc >> 5) & 0x0f;
}
domain = (env->cp15.c3 >> domain) & 3;
if (domain == 0 || domain == 2) {
domain_prot = (env->cp15.c3 >> (domain * 2)) & 3;
if (domain_prot == 0 || domain_prot == 2) {
if (type == 2)
code = 9; /* Section domain fault. */
else
@ -1182,7 +1171,7 @@ static int get_phys_addr_v6(CPUState *env, uint32_t address, int access_type,
}
code = 15;
}
if (domain == 3) {
if (domain_prot == 3) {
*prot = PAGE_READ | PAGE_WRITE | PAGE_EXEC;
} else {
if (xn && access_type == 2)
@ -1194,7 +1183,7 @@ static int get_phys_addr_v6(CPUState *env, uint32_t address, int access_type,
code = (code == 15) ? 6 : 3;
goto do_fault;
}
*prot = check_ap(env, ap, domain, access_type, is_user);
*prot = check_ap(env, ap, domain_prot, access_type, is_user);
if (!*prot) {
/* Access permission fault. */
goto do_fault;