summaryrefslogtreecommitdiffstats
path: root/linux-user/syscall.c
diff options
context:
space:
mode:
Diffstat (limited to 'linux-user/syscall.c')
-rw-r--r--linux-user/syscall.c657
1 files changed, 359 insertions, 298 deletions
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 56a3e17183..ce9d64896c 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -340,6 +340,36 @@ _syscall3(int, sys_sched_getaffinity, pid_t, pid, unsigned int, len,
#define __NR_sys_sched_setaffinity __NR_sched_setaffinity
_syscall3(int, sys_sched_setaffinity, pid_t, pid, unsigned int, len,
unsigned long *, user_mask_ptr);
+/* sched_attr is not defined in glibc */
+struct sched_attr {
+ uint32_t size;
+ uint32_t sched_policy;
+ uint64_t sched_flags;
+ int32_t sched_nice;
+ uint32_t sched_priority;
+ uint64_t sched_runtime;
+ uint64_t sched_deadline;
+ uint64_t sched_period;
+ uint32_t sched_util_min;
+ uint32_t sched_util_max;
+};
+#define __NR_sys_sched_getattr __NR_sched_getattr
+_syscall4(int, sys_sched_getattr, pid_t, pid, struct sched_attr *, attr,
+ unsigned int, size, unsigned int, flags);
+#define __NR_sys_sched_setattr __NR_sched_setattr
+_syscall3(int, sys_sched_setattr, pid_t, pid, struct sched_attr *, attr,
+ unsigned int, flags);
+#define __NR_sys_sched_getscheduler __NR_sched_getscheduler
+_syscall1(int, sys_sched_getscheduler, pid_t, pid);
+#define __NR_sys_sched_setscheduler __NR_sched_setscheduler
+_syscall3(int, sys_sched_setscheduler, pid_t, pid, int, policy,
+ const struct sched_param *, param);
+#define __NR_sys_sched_getparam __NR_sched_getparam
+_syscall2(int, sys_sched_getparam, pid_t, pid,
+ struct sched_param *, param);
+#define __NR_sys_sched_setparam __NR_sched_setparam
+_syscall2(int, sys_sched_setparam, pid_t, pid,
+ const struct sched_param *, param);
#define __NR_sys_getcpu __NR_getcpu
_syscall3(int, sys_getcpu, unsigned *, cpu, unsigned *, node, void *, tcache);
_syscall4(int, reboot, int, magic1, int, magic2, unsigned int, cmd,
@@ -558,6 +588,24 @@ const char *target_strerror(int err)
return strerror(target_to_host_errno(err));
}
+static int check_zeroed_user(abi_long addr, size_t ksize, size_t usize)
+{
+ int i;
+ uint8_t b;
+ if (usize <= ksize) {
+ return 1;
+ }
+ for (i = ksize; i < usize; i++) {
+ if (get_user_u8(b, addr + i)) {
+ return -TARGET_EFAULT;
+ }
+ if (b != 0) {
+ return 0;
+ }
+ }
+ return 1;
+}
+
#define safe_syscall0(type, name) \
static type safe_##name(void) \
{ \
@@ -4867,7 +4915,7 @@ static abi_long do_ioctl_ifconf(const IOCTLEntry *ie, uint8_t *buf_temp,
* We can't fit all the extents into the fixed size buffer.
* Allocate one that is large enough and use it instead.
*/
- host_ifconf = malloc(outbufsz);
+ host_ifconf = g_try_malloc(outbufsz);
if (!host_ifconf) {
return -TARGET_ENOMEM;
}
@@ -4915,7 +4963,7 @@ static abi_long do_ioctl_ifconf(const IOCTLEntry *ie, uint8_t *buf_temp,
}
if (free_buf) {
- free(host_ifconf);
+ g_free(host_ifconf);
}
return ret;
@@ -6294,9 +6342,216 @@ abi_long do_arch_prctl(CPUX86State *env, int code, abi_ulong addr)
return ret;
}
#endif /* defined(TARGET_ABI32 */
-
#endif /* defined(TARGET_I386) */
+/*
+ * These constants are generic. Supply any that are missing from the host.
+ */
+#ifndef PR_SET_NAME
+# define PR_SET_NAME 15
+# define PR_GET_NAME 16
+#endif
+#ifndef PR_SET_FP_MODE
+# define PR_SET_FP_MODE 45
+# define PR_GET_FP_MODE 46
+# define PR_FP_MODE_FR (1 << 0)
+# define PR_FP_MODE_FRE (1 << 1)
+#endif
+#ifndef PR_SVE_SET_VL
+# define PR_SVE_SET_VL 50
+# define PR_SVE_GET_VL 51
+# define PR_SVE_VL_LEN_MASK 0xffff
+# define PR_SVE_VL_INHERIT (1 << 17)
+#endif
+#ifndef PR_PAC_RESET_KEYS
+# define PR_PAC_RESET_KEYS 54
+# define PR_PAC_APIAKEY (1 << 0)
+# define PR_PAC_APIBKEY (1 << 1)
+# define PR_PAC_APDAKEY (1 << 2)
+# define PR_PAC_APDBKEY (1 << 3)
+# define PR_PAC_APGAKEY (1 << 4)
+#endif
+#ifndef PR_SET_TAGGED_ADDR_CTRL
+# define PR_SET_TAGGED_ADDR_CTRL 55
+# define PR_GET_TAGGED_ADDR_CTRL 56
+# define PR_TAGGED_ADDR_ENABLE (1UL << 0)
+#endif
+#ifndef PR_MTE_TCF_SHIFT
+# define PR_MTE_TCF_SHIFT 1
+# define PR_MTE_TCF_NONE (0UL << PR_MTE_TCF_SHIFT)
+# define PR_MTE_TCF_SYNC (1UL << PR_MTE_TCF_SHIFT)
+# define PR_MTE_TCF_ASYNC (2UL << PR_MTE_TCF_SHIFT)
+# define PR_MTE_TCF_MASK (3UL << PR_MTE_TCF_SHIFT)
+# define PR_MTE_TAG_SHIFT 3
+# define PR_MTE_TAG_MASK (0xffffUL << PR_MTE_TAG_SHIFT)
+#endif
+#ifndef PR_SET_IO_FLUSHER
+# define PR_SET_IO_FLUSHER 57
+# define PR_GET_IO_FLUSHER 58
+#endif
+#ifndef PR_SET_SYSCALL_USER_DISPATCH
+# define PR_SET_SYSCALL_USER_DISPATCH 59
+#endif
+
+#include "target_prctl.h"
+
+static abi_long do_prctl_inval0(CPUArchState *env)
+{
+ return -TARGET_EINVAL;
+}
+
+static abi_long do_prctl_inval1(CPUArchState *env, abi_long arg2)
+{
+ return -TARGET_EINVAL;
+}
+
+#ifndef do_prctl_get_fp_mode
+#define do_prctl_get_fp_mode do_prctl_inval0
+#endif
+#ifndef do_prctl_set_fp_mode
+#define do_prctl_set_fp_mode do_prctl_inval1
+#endif
+#ifndef do_prctl_get_vl
+#define do_prctl_get_vl do_prctl_inval0
+#endif
+#ifndef do_prctl_set_vl
+#define do_prctl_set_vl do_prctl_inval1
+#endif
+#ifndef do_prctl_reset_keys
+#define do_prctl_reset_keys do_prctl_inval1
+#endif
+#ifndef do_prctl_set_tagged_addr_ctrl
+#define do_prctl_set_tagged_addr_ctrl do_prctl_inval1
+#endif
+#ifndef do_prctl_get_tagged_addr_ctrl
+#define do_prctl_get_tagged_addr_ctrl do_prctl_inval0
+#endif
+#ifndef do_prctl_get_unalign
+#define do_prctl_get_unalign do_prctl_inval1
+#endif
+#ifndef do_prctl_set_unalign
+#define do_prctl_set_unalign do_prctl_inval1
+#endif
+
+static abi_long do_prctl(CPUArchState *env, abi_long option, abi_long arg2,
+ abi_long arg3, abi_long arg4, abi_long arg5)
+{
+ abi_long ret;
+
+ switch (option) {
+ case PR_GET_PDEATHSIG:
+ {
+ int deathsig;
+ ret = get_errno(prctl(PR_GET_PDEATHSIG, &deathsig,
+ arg3, arg4, arg5));
+ if (!is_error(ret) && arg2 && put_user_s32(deathsig, arg2)) {
+ return -TARGET_EFAULT;
+ }
+ return ret;
+ }
+ case PR_GET_NAME:
+ {
+ void *name = lock_user(VERIFY_WRITE, arg2, 16, 1);
+ if (!name) {
+ return -TARGET_EFAULT;
+ }
+ ret = get_errno(prctl(PR_GET_NAME, (uintptr_t)name,
+ arg3, arg4, arg5));
+ unlock_user(name, arg2, 16);
+ return ret;
+ }
+ case PR_SET_NAME:
+ {
+ void *name = lock_user(VERIFY_READ, arg2, 16, 1);
+ if (!name) {
+ return -TARGET_EFAULT;
+ }
+ ret = get_errno(prctl(PR_SET_NAME, (uintptr_t)name,
+ arg3, arg4, arg5));
+ unlock_user(name, arg2, 0);
+ return ret;
+ }
+ case PR_GET_FP_MODE:
+ return do_prctl_get_fp_mode(env);
+ case PR_SET_FP_MODE:
+ return do_prctl_set_fp_mode(env, arg2);
+ case PR_SVE_GET_VL:
+ return do_prctl_get_vl(env);
+ case PR_SVE_SET_VL:
+ return do_prctl_set_vl(env, arg2);
+ case PR_PAC_RESET_KEYS:
+ if (arg3 || arg4 || arg5) {
+ return -TARGET_EINVAL;
+ }
+ return do_prctl_reset_keys(env, arg2);
+ case PR_SET_TAGGED_ADDR_CTRL:
+ if (arg3 || arg4 || arg5) {
+ return -TARGET_EINVAL;
+ }
+ return do_prctl_set_tagged_addr_ctrl(env, arg2);
+ case PR_GET_TAGGED_ADDR_CTRL:
+ if (arg2 || arg3 || arg4 || arg5) {
+ return -TARGET_EINVAL;
+ }
+ return do_prctl_get_tagged_addr_ctrl(env);
+
+ case PR_GET_UNALIGN:
+ return do_prctl_get_unalign(env, arg2);
+ case PR_SET_UNALIGN:
+ return do_prctl_set_unalign(env, arg2);
+
+ case PR_GET_DUMPABLE:
+ case PR_SET_DUMPABLE:
+ case PR_GET_KEEPCAPS:
+ case PR_SET_KEEPCAPS:
+ case PR_GET_TIMING:
+ case PR_SET_TIMING:
+ case PR_GET_TIMERSLACK:
+ case PR_SET_TIMERSLACK:
+ case PR_MCE_KILL:
+ case PR_MCE_KILL_GET:
+ case PR_GET_NO_NEW_PRIVS:
+ case PR_SET_NO_NEW_PRIVS:
+ case PR_GET_IO_FLUSHER:
+ case PR_SET_IO_FLUSHER:
+ /* Some prctl options have no pointer arguments and we can pass on. */
+ return get_errno(prctl(option, arg2, arg3, arg4, arg5));
+
+ case PR_GET_CHILD_SUBREAPER:
+ case PR_SET_CHILD_SUBREAPER:
+ case PR_GET_SPECULATION_CTRL:
+ case PR_SET_SPECULATION_CTRL:
+ case PR_GET_TID_ADDRESS:
+ /* TODO */
+ return -TARGET_EINVAL;
+
+ case PR_GET_FPEXC:
+ case PR_SET_FPEXC:
+ /* Was used for SPE on PowerPC. */
+ return -TARGET_EINVAL;
+
+ case PR_GET_ENDIAN:
+ case PR_SET_ENDIAN:
+ case PR_GET_FPEMU:
+ case PR_SET_FPEMU:
+ case PR_SET_MM:
+ case PR_GET_SECCOMP:
+ case PR_SET_SECCOMP:
+ case PR_SET_SYSCALL_USER_DISPATCH:
+ case PR_GET_THP_DISABLE:
+ case PR_SET_THP_DISABLE:
+ case PR_GET_TSC:
+ case PR_SET_TSC:
+ /* Disable to prevent the target disabling stuff we need. */
+ return -TARGET_EINVAL;
+
+ default:
+ qemu_log_mask(LOG_UNIMP, "Unsupported prctl: " TARGET_ABI_FMT_ld "\n",
+ option);
+ return -TARGET_EINVAL;
+ }
+}
+
#define NEW_STACK_SIZE 0x40000
@@ -7790,7 +8045,7 @@ static int open_self_maps(void *cpu_env, int fd)
(flags & PAGE_READ) ? 'r' : '-',
(flags & PAGE_WRITE_ORG) ? 'w' : '-',
(flags & PAGE_EXEC) ? 'x' : '-',
- e->is_priv ? 'p' : '-',
+ e->is_priv ? 'p' : 's',
(uint64_t) e->offset, e->dev, e->inode);
if (path) {
dprintf(fd, "%*s%s\n", 73 - count, "", path);
@@ -10550,30 +10805,32 @@ static abi_long do_syscall1(void *cpu_env, int num, abi_long arg1,
return ret;
case TARGET_NR_sched_setparam:
{
- struct sched_param *target_schp;
+ struct target_sched_param *target_schp;
struct sched_param schp;
if (arg2 == 0) {
return -TARGET_EINVAL;
}
- if (!lock_user_struct(VERIFY_READ, target_schp, arg2, 1))
+ if (!lock_user_struct(VERIFY_READ, target_schp, arg2, 1)) {
return -TARGET_EFAULT;
+ }
schp.sched_priority = tswap32(target_schp->sched_priority);
unlock_user_struct(target_schp, arg2, 0);
- return get_errno(sched_setparam(arg1, &schp));
+ return get_errno(sys_sched_setparam(arg1, &schp));
}
case TARGET_NR_sched_getparam:
{
- struct sched_param *target_schp;
+ struct target_sched_param *target_schp;
struct sched_param schp;
if (arg2 == 0) {
return -TARGET_EINVAL;
}
- ret = get_errno(sched_getparam(arg1, &schp));
+ ret = get_errno(sys_sched_getparam(arg1, &schp));
if (!is_error(ret)) {
- if (!lock_user_struct(VERIFY_WRITE, target_schp, arg2, 0))
+ if (!lock_user_struct(VERIFY_WRITE, target_schp, arg2, 0)) {
return -TARGET_EFAULT;
+ }
target_schp->sched_priority = tswap32(schp.sched_priority);
unlock_user_struct(target_schp, arg2, 1);
}
@@ -10581,19 +10838,106 @@ static abi_long do_syscall1(void *cpu_env, int num, abi_long arg1,
return ret;
case TARGET_NR_sched_setscheduler:
{
- struct sched_param *target_schp;
+ struct target_sched_param *target_schp;
struct sched_param schp;
if (arg3 == 0) {
return -TARGET_EINVAL;
}
- if (!lock_user_struct(VERIFY_READ, target_schp, arg3, 1))
+ if (!lock_user_struct(VERIFY_READ, target_schp, arg3, 1)) {
return -TARGET_EFAULT;
+ }
schp.sched_priority = tswap32(target_schp->sched_priority);
unlock_user_struct(target_schp, arg3, 0);
- return get_errno(sched_setscheduler(arg1, arg2, &schp));
+ return get_errno(sys_sched_setscheduler(arg1, arg2, &schp));
}
case TARGET_NR_sched_getscheduler:
- return get_errno(sched_getscheduler(arg1));
+ return get_errno(sys_sched_getscheduler(arg1));
+ case TARGET_NR_sched_getattr:
+ {
+ struct target_sched_attr *target_scha;
+ struct sched_attr scha;
+ if (arg2 == 0) {
+ return -TARGET_EINVAL;
+ }
+ if (arg3 > sizeof(scha)) {
+ arg3 = sizeof(scha);
+ }
+ ret = get_errno(sys_sched_getattr(arg1, &scha, arg3, arg4));
+ if (!is_error(ret)) {
+ target_scha = lock_user(VERIFY_WRITE, arg2, arg3, 0);
+ if (!target_scha) {
+ return -TARGET_EFAULT;
+ }
+ target_scha->size = tswap32(scha.size);
+ target_scha->sched_policy = tswap32(scha.sched_policy);
+ target_scha->sched_flags = tswap64(scha.sched_flags);
+ target_scha->sched_nice = tswap32(scha.sched_nice);
+ target_scha->sched_priority = tswap32(scha.sched_priority);
+ target_scha->sched_runtime = tswap64(scha.sched_runtime);
+ target_scha->sched_deadline = tswap64(scha.sched_deadline);
+ target_scha->sched_period = tswap64(scha.sched_period);
+ if (scha.size > offsetof(struct sched_attr, sched_util_min)) {
+ target_scha->sched_util_min = tswap32(scha.sched_util_min);
+ target_scha->sched_util_max = tswap32(scha.sched_util_max);
+ }
+ unlock_user(target_scha, arg2, arg3);
+ }
+ return ret;
+ }
+ case TARGET_NR_sched_setattr:
+ {
+ struct target_sched_attr *target_scha;
+ struct sched_attr scha;
+ uint32_t size;
+ int zeroed;
+ if (arg2 == 0) {
+ return -TARGET_EINVAL;
+ }
+ if (get_user_u32(size, arg2)) {
+ return -TARGET_EFAULT;
+ }
+ if (!size) {
+ size = offsetof(struct target_sched_attr, sched_util_min);
+ }
+ if (size < offsetof(struct target_sched_attr, sched_util_min)) {
+ if (put_user_u32(sizeof(struct target_sched_attr), arg2)) {
+ return -TARGET_EFAULT;
+ }
+ return -TARGET_E2BIG;
+ }
+
+ zeroed = check_zeroed_user(arg2, sizeof(struct target_sched_attr), size);
+ if (zeroed < 0) {
+ return zeroed;
+ } else if (zeroed == 0) {
+ if (put_user_u32(sizeof(struct target_sched_attr), arg2)) {
+ return -TARGET_EFAULT;
+ }
+ return -TARGET_E2BIG;
+ }
+ if (size > sizeof(struct target_sched_attr)) {
+ size = sizeof(struct target_sched_attr);
+ }
+
+ target_scha = lock_user(VERIFY_READ, arg2, size, 1);
+ if (!target_scha) {
+ return -TARGET_EFAULT;
+ }
+ scha.size = size;
+ scha.sched_policy = tswap32(target_scha->sched_policy);
+ scha.sched_flags = tswap64(target_scha->sched_flags);
+ scha.sched_nice = tswap32(target_scha->sched_nice);
+ scha.sched_priority = tswap32(target_scha->sched_priority);
+ scha.sched_runtime = tswap64(target_scha->sched_runtime);
+ scha.sched_deadline = tswap64(target_scha->sched_deadline);
+ scha.sched_period = tswap64(target_scha->sched_period);
+ if (size > offsetof(struct target_sched_attr, sched_util_min)) {
+ scha.sched_util_min = tswap32(target_scha->sched_util_min);
+ scha.sched_util_max = tswap32(target_scha->sched_util_max);
+ }
+ unlock_user(target_scha, arg2, 0);
+ return get_errno(sys_sched_setattr(arg1, &scha, arg3));
+ }
case TARGET_NR_sched_yield:
return get_errno(sched_yield());
case TARGET_NR_sched_get_priority_max:
@@ -10635,290 +10979,7 @@ static abi_long do_syscall1(void *cpu_env, int num, abi_long arg1,
return ret;
#endif
case TARGET_NR_prctl:
- switch (arg1) {
- case PR_GET_PDEATHSIG:
- {
- int deathsig;
- ret = get_errno(prctl(arg1, &deathsig, arg3, arg4, arg5));
- if (!is_error(ret) && arg2
- && put_user_s32(deathsig, arg2)) {
- return -TARGET_EFAULT;
- }
- return ret;
- }
-#ifdef PR_GET_NAME
- case PR_GET_NAME:
- {
- void *name = lock_user(VERIFY_WRITE, arg2, 16, 1);
- if (!name) {
- return -TARGET_EFAULT;
- }
- ret = get_errno(prctl(arg1, (unsigned long)name,
- arg3, arg4, arg5));
- unlock_user(name, arg2, 16);
- return ret;
- }
- case PR_SET_NAME:
- {
- void *name = lock_user(VERIFY_READ, arg2, 16, 1);
- if (!name) {
- return -TARGET_EFAULT;
- }
- ret = get_errno(prctl(arg1, (unsigned long)name,
- arg3, arg4, arg5));
- unlock_user(name, arg2, 0);
- return ret;
- }
-#endif
-#ifdef TARGET_MIPS
- case TARGET_PR_GET_FP_MODE:
- {
- CPUMIPSState *env = ((CPUMIPSState *)cpu_env);
- ret = 0;
- if (env->CP0_Status & (1 << CP0St_FR)) {
- ret |= TARGET_PR_FP_MODE_FR;
- }
- if (env->CP0_Config5 & (1 << CP0C5_FRE)) {
- ret |= TARGET_PR_FP_MODE_FRE;
- }
- return ret;
- }
- case TARGET_PR_SET_FP_MODE:
- {
- CPUMIPSState *env = ((CPUMIPSState *)cpu_env);
- bool old_fr = env->CP0_Status & (1 << CP0St_FR);
- bool old_fre = env->CP0_Config5 & (1 << CP0C5_FRE);
- bool new_fr = arg2 & TARGET_PR_FP_MODE_FR;
- bool new_fre = arg2 & TARGET_PR_FP_MODE_FRE;
-
- const unsigned int known_bits = TARGET_PR_FP_MODE_FR |
- TARGET_PR_FP_MODE_FRE;
-
- /* If nothing to change, return right away, successfully. */
- if (old_fr == new_fr && old_fre == new_fre) {
- return 0;
- }
- /* Check the value is valid */
- if (arg2 & ~known_bits) {
- return -TARGET_EOPNOTSUPP;
- }
- /* Setting FRE without FR is not supported. */
- if (new_fre && !new_fr) {
- return -TARGET_EOPNOTSUPP;
- }
- if (new_fr && !(env->active_fpu.fcr0 & (1 << FCR0_F64))) {
- /* FR1 is not supported */
- return -TARGET_EOPNOTSUPP;
- }
- if (!new_fr && (env->active_fpu.fcr0 & (1 << FCR0_F64))
- && !(env->CP0_Status_rw_bitmask & (1 << CP0St_FR))) {
- /* cannot set FR=0 */
- return -TARGET_EOPNOTSUPP;
- }
- if (new_fre && !(env->active_fpu.fcr0 & (1 << FCR0_FREP))) {
- /* Cannot set FRE=1 */
- return -TARGET_EOPNOTSUPP;
- }
-
- int i;
- fpr_t *fpr = env->active_fpu.fpr;
- for (i = 0; i < 32 ; i += 2) {
- if (!old_fr && new_fr) {
- fpr[i].w[!FP_ENDIAN_IDX] = fpr[i + 1].w[FP_ENDIAN_IDX];
- } else if (old_fr && !new_fr) {
- fpr[i + 1].w[FP_ENDIAN_IDX] = fpr[i].w[!FP_ENDIAN_IDX];
- }
- }
-
- if (new_fr) {
- env->CP0_Status |= (1 << CP0St_FR);
- env->hflags |= MIPS_HFLAG_F64;
- } else {
- env->CP0_Status &= ~(1 << CP0St_FR);
- env->hflags &= ~MIPS_HFLAG_F64;
- }
- if (new_fre) {
- env->CP0_Config5 |= (1 << CP0C5_FRE);
- if (env->active_fpu.fcr0 & (1 << FCR0_FREP)) {
- env->hflags |= MIPS_HFLAG_FRE;
- }
- } else {
- env->CP0_Config5 &= ~(1 << CP0C5_FRE);
- env->hflags &= ~MIPS_HFLAG_FRE;
- }
-
- return 0;
- }
-#endif /* MIPS */
-#ifdef TARGET_AARCH64
- case TARGET_PR_SVE_SET_VL:
- /*
- * We cannot support either PR_SVE_SET_VL_ONEXEC or
- * PR_SVE_VL_INHERIT. Note the kernel definition
- * of sve_vl_valid allows for VQ=512, i.e. VL=8192,
- * even though the current architectural maximum is VQ=16.
- */
- ret = -TARGET_EINVAL;
- if (cpu_isar_feature(aa64_sve, env_archcpu(cpu_env))
- && arg2 >= 0 && arg2 <= 512 * 16 && !(arg2 & 15)) {
- CPUARMState *env = cpu_env;
- ARMCPU *cpu = env_archcpu(env);
- uint32_t vq, old_vq;
-
- old_vq = (env->vfp.zcr_el[1] & 0xf) + 1;
- vq = MAX(arg2 / 16, 1);
- vq = MIN(vq, cpu->sve_max_vq);
-
- if (vq < old_vq) {
- aarch64_sve_narrow_vq(env, vq);
- }
- env->vfp.zcr_el[1] = vq - 1;
- arm_rebuild_hflags(env);
- ret = vq * 16;
- }
- return ret;
- case TARGET_PR_SVE_GET_VL:
- ret = -TARGET_EINVAL;
- {
- ARMCPU *cpu = env_archcpu(cpu_env);
- if (cpu_isar_feature(aa64_sve, cpu)) {
- ret = ((cpu->env.vfp.zcr_el[1] & 0xf) + 1) * 16;
- }
- }
- return ret;
- case TARGET_PR_PAC_RESET_KEYS:
- {
- CPUARMState *env = cpu_env;
- ARMCPU *cpu = env_archcpu(env);
-
- if (arg3 || arg4 || arg5) {
- return -TARGET_EINVAL;
- }
- if (cpu_isar_feature(aa64_pauth, cpu)) {
- int all = (TARGET_PR_PAC_APIAKEY | TARGET_PR_PAC_APIBKEY |
- TARGET_PR_PAC_APDAKEY | TARGET_PR_PAC_APDBKEY |
- TARGET_PR_PAC_APGAKEY);
- int ret = 0;
- Error *err = NULL;
-
- if (arg2 == 0) {
- arg2 = all;
- } else if (arg2 & ~all) {
- return -TARGET_EINVAL;
- }
- if (arg2 & TARGET_PR_PAC_APIAKEY) {
- ret |= qemu_guest_getrandom(&env->keys.apia,
- sizeof(ARMPACKey), &err);
- }
- if (arg2 & TARGET_PR_PAC_APIBKEY) {
- ret |= qemu_guest_getrandom(&env->keys.apib,
- sizeof(ARMPACKey), &err);
- }
- if (arg2 & TARGET_PR_PAC_APDAKEY) {
- ret |= qemu_guest_getrandom(&env->keys.apda,
- sizeof(ARMPACKey), &err);
- }
- if (arg2 & TARGET_PR_PAC_APDBKEY) {
- ret |= qemu_guest_getrandom(&env->keys.apdb,
- sizeof(ARMPACKey), &err);
- }
- if (arg2 & TARGET_PR_PAC_APGAKEY) {
- ret |= qemu_guest_getrandom(&env->keys.apga,
- sizeof(ARMPACKey), &err);
- }
- if (ret != 0) {
- /*
- * Some unknown failure in the crypto. The best
- * we can do is log it and fail the syscall.
- * The real syscall cannot fail this way.
- */
- qemu_log_mask(LOG_UNIMP,
- "PR_PAC_RESET_KEYS: Crypto failure: %s",
- error_get_pretty(err));
- error_free(err);
- return -TARGET_EIO;
- }
- return 0;
- }
- }
- return -TARGET_EINVAL;
- case TARGET_PR_SET_TAGGED_ADDR_CTRL:
- {
- abi_ulong valid_mask = TARGET_PR_TAGGED_ADDR_ENABLE;
- CPUARMState *env = cpu_env;
- ARMCPU *cpu = env_archcpu(env);
-
- if (cpu_isar_feature(aa64_mte, cpu)) {
- valid_mask |= TARGET_PR_MTE_TCF_MASK;
- valid_mask |= TARGET_PR_MTE_TAG_MASK;
- }
-
- if ((arg2 & ~valid_mask) || arg3 || arg4 || arg5) {
- return -TARGET_EINVAL;
- }
- env->tagged_addr_enable = arg2 & TARGET_PR_TAGGED_ADDR_ENABLE;
-
- if (cpu_isar_feature(aa64_mte, cpu)) {
- switch (arg2 & TARGET_PR_MTE_TCF_MASK) {
- case TARGET_PR_MTE_TCF_NONE:
- case TARGET_PR_MTE_TCF_SYNC:
- case TARGET_PR_MTE_TCF_ASYNC:
- break;
- default:
- return -EINVAL;
- }
-
- /*
- * Write PR_MTE_TCF to SCTLR_EL1[TCF0].
- * Note that the syscall values are consistent with hw.
- */
- env->cp15.sctlr_el[1] =
- deposit64(env->cp15.sctlr_el[1], 38, 2,
- arg2 >> TARGET_PR_MTE_TCF_SHIFT);
-
- /*
- * Write PR_MTE_TAG to GCR_EL1[Exclude].
- * Note that the syscall uses an include mask,
- * and hardware uses an exclude mask -- invert.
- */
- env->cp15.gcr_el1 =
- deposit64(env->cp15.gcr_el1, 0, 16,
- ~arg2 >> TARGET_PR_MTE_TAG_SHIFT);
- arm_rebuild_hflags(env);
- }
- return 0;
- }
- case TARGET_PR_GET_TAGGED_ADDR_CTRL:
- {
- abi_long ret = 0;
- CPUARMState *env = cpu_env;
- ARMCPU *cpu = env_archcpu(env);
-
- if (arg2 || arg3 || arg4 || arg5) {
- return -TARGET_EINVAL;
- }
- if (env->tagged_addr_enable) {
- ret |= TARGET_PR_TAGGED_ADDR_ENABLE;
- }
- if (cpu_isar_feature(aa64_mte, cpu)) {
- /* See above. */
- ret |= (extract64(env->cp15.sctlr_el[1], 38, 2)
- << TARGET_PR_MTE_TCF_SHIFT);
- ret = deposit64(ret, TARGET_PR_MTE_TAG_SHIFT, 16,
- ~env->cp15.gcr_el1);
- }
- return ret;
- }
-#endif /* AARCH64 */
- case PR_GET_SECCOMP:
- case PR_SET_SECCOMP:
- /* Disable seccomp to prevent the target disabling syscalls we
- * need. */
- return -TARGET_EINVAL;
- default:
- /* Most prctl options have no pointer arguments */
- return get_errno(prctl(arg1, arg2, arg3, arg4, arg5));
- }
+ return do_prctl(cpu_env, arg1, arg2, arg3, arg4, arg5);
break;
#ifdef TARGET_NR_arch_prctl
case TARGET_NR_arch_prctl:
generated by cgit v1.2.3-55-g7522 (git 2.39.0) at 2026-03-10 16:53:49 +0100