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-rw-r--r--arch/um/include/asm/hardirq.h23
-rw-r--r--arch/um/include/asm/page.h30
-rw-r--r--arch/um/include/asm/pgtable-3level.h4
-rw-r--r--arch/um/include/asm/pgtable.h2
-rw-r--r--arch/um/include/asm/syscall-generic.h138
-rw-r--r--arch/um/include/asm/thread_info.h2
-rw-r--r--arch/um/include/shared/os.h3
7 files changed, 181 insertions, 21 deletions
diff --git a/arch/um/include/asm/hardirq.h b/arch/um/include/asm/hardirq.h
new file mode 100644
index 000000000..756f0778e
--- /dev/null
+++ b/arch/um/include/asm/hardirq.h
@@ -0,0 +1,23 @@
+#ifndef __ASM_UM_HARDIRQ_H
+#define __ASM_UM_HARDIRQ_H
+
+#include <linux/cache.h>
+#include <linux/threads.h>
+
+typedef struct {
+ unsigned int __softirq_pending;
+} ____cacheline_aligned irq_cpustat_t;
+
+#include <linux/irq_cpustat.h> /* Standard mappings for irq_cpustat_t above */
+#include <linux/irq.h>
+
+#ifndef ack_bad_irq
+static inline void ack_bad_irq(unsigned int irq)
+{
+ printk(KERN_CRIT "unexpected IRQ trap at vector %02x\n", irq);
+}
+#endif
+
+#define __ARCH_IRQ_EXIT_IRQS_DISABLED 1
+
+#endif /* __ASM_UM_HARDIRQ_H */
diff --git a/arch/um/include/asm/page.h b/arch/um/include/asm/page.h
index 71c5d1320..f878bec23 100644
--- a/arch/um/include/asm/page.h
+++ b/arch/um/include/asm/page.h
@@ -18,6 +18,7 @@
struct page;
+#include <linux/pfn.h>
#include <linux/types.h>
#include <asm/vm-flags.h>
@@ -33,26 +34,22 @@ struct page;
#if defined(CONFIG_3_LEVEL_PGTABLES) && !defined(CONFIG_64BIT)
-typedef struct { unsigned long pte_low, pte_high; } pte_t;
+typedef struct { unsigned long pte; } pte_t;
typedef struct { unsigned long pmd; } pmd_t;
typedef struct { unsigned long pgd; } pgd_t;
-#define pte_val(x) ((x).pte_low | ((unsigned long long) (x).pte_high << 32))
-
-#define pte_get_bits(pte, bits) ((pte).pte_low & (bits))
-#define pte_set_bits(pte, bits) ((pte).pte_low |= (bits))
-#define pte_clear_bits(pte, bits) ((pte).pte_low &= ~(bits))
-#define pte_copy(to, from) ({ (to).pte_high = (from).pte_high; \
- smp_wmb(); \
- (to).pte_low = (from).pte_low; })
-#define pte_is_zero(pte) (!((pte).pte_low & ~_PAGE_NEWPAGE) && !(pte).pte_high)
-#define pte_set_val(pte, phys, prot) \
- ({ (pte).pte_high = (phys) >> 32; \
- (pte).pte_low = (phys) | pgprot_val(prot); })
+#define pte_val(p) ((p).pte)
+
+#define pte_get_bits(p, bits) ((p).pte & (bits))
+#define pte_set_bits(p, bits) ((p).pte |= (bits))
+#define pte_clear_bits(p, bits) ((p).pte &= ~(bits))
+#define pte_copy(to, from) ({ (to).pte = (from).pte; })
+#define pte_is_zero(p) (!((p).pte & ~_PAGE_NEWPAGE))
+#define pte_set_val(p, phys, prot) \
+ ({ (p).pte = (phys) | pgprot_val(prot); })
#define pmd_val(x) ((x).pmd)
#define __pmd(x) ((pmd_t) { (x) } )
-typedef unsigned long long pfn_t;
typedef unsigned long long phys_t;
#else
@@ -76,7 +73,6 @@ typedef struct { unsigned long pmd; } pmd_t;
#define pte_is_zero(p) (!((p).pte & ~_PAGE_NEWPAGE))
#define pte_set_val(p, phys, prot) (p).pte = (phys | pgprot_val(prot))
-typedef unsigned long pfn_t;
typedef unsigned long phys_t;
#endif
@@ -109,8 +105,8 @@ extern unsigned long uml_physmem;
#define __pa(virt) to_phys((void *) (unsigned long) (virt))
#define __va(phys) to_virt((unsigned long) (phys))
-#define phys_to_pfn(p) ((pfn_t) ((p) >> PAGE_SHIFT))
-#define pfn_to_phys(pfn) ((phys_t) ((pfn) << PAGE_SHIFT))
+#define phys_to_pfn(p) ((p) >> PAGE_SHIFT)
+#define pfn_to_phys(pfn) PFN_PHYS(pfn)
#define pfn_valid(pfn) ((pfn) < max_mapnr)
#define virt_addr_valid(v) pfn_valid(phys_to_pfn(__pa(v)))
diff --git a/arch/um/include/asm/pgtable-3level.h b/arch/um/include/asm/pgtable-3level.h
index 2b4274e7c..bae8523a1 100644
--- a/arch/um/include/asm/pgtable-3level.h
+++ b/arch/um/include/asm/pgtable-3level.h
@@ -98,7 +98,7 @@ static inline unsigned long pte_pfn(pte_t pte)
return phys_to_pfn(pte_val(pte));
}
-static inline pte_t pfn_pte(pfn_t page_nr, pgprot_t pgprot)
+static inline pte_t pfn_pte(unsigned long page_nr, pgprot_t pgprot)
{
pte_t pte;
phys_t phys = pfn_to_phys(page_nr);
@@ -107,7 +107,7 @@ static inline pte_t pfn_pte(pfn_t page_nr, pgprot_t pgprot)
return pte;
}
-static inline pmd_t pfn_pmd(pfn_t page_nr, pgprot_t pgprot)
+static inline pmd_t pfn_pmd(unsigned long page_nr, pgprot_t pgprot)
{
return __pmd((page_nr << PAGE_SHIFT) | pgprot_val(pgprot));
}
diff --git a/arch/um/include/asm/pgtable.h b/arch/um/include/asm/pgtable.h
index 18eb9924d..7485398d0 100644
--- a/arch/um/include/asm/pgtable.h
+++ b/arch/um/include/asm/pgtable.h
@@ -271,7 +271,7 @@ static inline int pte_same(pte_t pte_a, pte_t pte_b)
#define phys_to_page(phys) pfn_to_page(phys_to_pfn(phys))
#define __virt_to_page(virt) phys_to_page(__pa(virt))
-#define page_to_phys(page) pfn_to_phys((pfn_t) page_to_pfn(page))
+#define page_to_phys(page) pfn_to_phys(page_to_pfn(page))
#define virt_to_page(addr) __virt_to_page((const unsigned long) addr)
#define mk_pte(page, pgprot) \
diff --git a/arch/um/include/asm/syscall-generic.h b/arch/um/include/asm/syscall-generic.h
new file mode 100644
index 000000000..9fb9cf8cd
--- /dev/null
+++ b/arch/um/include/asm/syscall-generic.h
@@ -0,0 +1,138 @@
+/*
+ * Access to user system call parameters and results
+ *
+ * See asm-generic/syscall.h for function descriptions.
+ *
+ * Copyright (C) 2015 Mickaël Salaün <mic@digikod.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef __UM_SYSCALL_GENERIC_H
+#define __UM_SYSCALL_GENERIC_H
+
+#include <asm/ptrace.h>
+#include <linux/err.h>
+#include <linux/sched.h>
+#include <sysdep/ptrace.h>
+
+static inline int syscall_get_nr(struct task_struct *task, struct pt_regs *regs)
+{
+
+ return PT_REGS_SYSCALL_NR(regs);
+}
+
+static inline void syscall_rollback(struct task_struct *task,
+ struct pt_regs *regs)
+{
+ /* do nothing */
+}
+
+static inline long syscall_get_error(struct task_struct *task,
+ struct pt_regs *regs)
+{
+ const long error = regs_return_value(regs);
+
+ return IS_ERR_VALUE(error) ? error : 0;
+}
+
+static inline long syscall_get_return_value(struct task_struct *task,
+ struct pt_regs *regs)
+{
+ return regs_return_value(regs);
+}
+
+static inline void syscall_set_return_value(struct task_struct *task,
+ struct pt_regs *regs,
+ int error, long val)
+{
+ PT_REGS_SET_SYSCALL_RETURN(regs, (long) error ?: val);
+}
+
+static inline void syscall_get_arguments(struct task_struct *task,
+ struct pt_regs *regs,
+ unsigned int i, unsigned int n,
+ unsigned long *args)
+{
+ const struct uml_pt_regs *r = &regs->regs;
+
+ switch (i) {
+ case 0:
+ if (!n--)
+ break;
+ *args++ = UPT_SYSCALL_ARG1(r);
+ case 1:
+ if (!n--)
+ break;
+ *args++ = UPT_SYSCALL_ARG2(r);
+ case 2:
+ if (!n--)
+ break;
+ *args++ = UPT_SYSCALL_ARG3(r);
+ case 3:
+ if (!n--)
+ break;
+ *args++ = UPT_SYSCALL_ARG4(r);
+ case 4:
+ if (!n--)
+ break;
+ *args++ = UPT_SYSCALL_ARG5(r);
+ case 5:
+ if (!n--)
+ break;
+ *args++ = UPT_SYSCALL_ARG6(r);
+ case 6:
+ if (!n--)
+ break;
+ default:
+ BUG();
+ break;
+ }
+}
+
+static inline void syscall_set_arguments(struct task_struct *task,
+ struct pt_regs *regs,
+ unsigned int i, unsigned int n,
+ const unsigned long *args)
+{
+ struct uml_pt_regs *r = &regs->regs;
+
+ switch (i) {
+ case 0:
+ if (!n--)
+ break;
+ UPT_SYSCALL_ARG1(r) = *args++;
+ case 1:
+ if (!n--)
+ break;
+ UPT_SYSCALL_ARG2(r) = *args++;
+ case 2:
+ if (!n--)
+ break;
+ UPT_SYSCALL_ARG3(r) = *args++;
+ case 3:
+ if (!n--)
+ break;
+ UPT_SYSCALL_ARG4(r) = *args++;
+ case 4:
+ if (!n--)
+ break;
+ UPT_SYSCALL_ARG5(r) = *args++;
+ case 5:
+ if (!n--)
+ break;
+ UPT_SYSCALL_ARG6(r) = *args++;
+ case 6:
+ if (!n--)
+ break;
+ default:
+ BUG();
+ break;
+ }
+}
+
+/* See arch/x86/um/asm/syscall.h for syscall_get_arch() definition. */
+
+#endif /* __UM_SYSCALL_GENERIC_H */
diff --git a/arch/um/include/asm/thread_info.h b/arch/um/include/asm/thread_info.h
index 53968aaf7..053baff03 100644
--- a/arch/um/include/asm/thread_info.h
+++ b/arch/um/include/asm/thread_info.h
@@ -62,11 +62,13 @@ static inline struct thread_info *current_thread_info(void)
#define TIF_SYSCALL_AUDIT 6
#define TIF_RESTORE_SIGMASK 7
#define TIF_NOTIFY_RESUME 8
+#define TIF_SECCOMP 9 /* secure computing */
#define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE)
#define _TIF_SIGPENDING (1 << TIF_SIGPENDING)
#define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED)
#define _TIF_MEMDIE (1 << TIF_MEMDIE)
#define _TIF_SYSCALL_AUDIT (1 << TIF_SYSCALL_AUDIT)
+#define _TIF_SECCOMP (1 << TIF_SECCOMP)
#endif
diff --git a/arch/um/include/shared/os.h b/arch/um/include/shared/os.h
index 868e6c3f8..de5d57222 100644
--- a/arch/um/include/shared/os.h
+++ b/arch/um/include/shared/os.h
@@ -146,6 +146,8 @@ extern int os_read_file(int fd, void *buf, int len);
extern int os_write_file(int fd, const void *buf, int count);
extern int os_sync_file(int fd);
extern int os_file_size(const char *file, unsigned long long *size_out);
+extern int os_pread_file(int fd, void *buf, int len, unsigned long long offset);
+extern int os_pwrite_file(int fd, const void *buf, int count, unsigned long long offset);
extern int os_file_modtime(const char *file, unsigned long *modtime);
extern int os_pipe(int *fd, int stream, int close_on_exec);
extern int os_set_fd_async(int fd);
@@ -282,7 +284,6 @@ extern void initial_thread_cb_skas(void (*proc)(void *),
void *arg);
extern void halt_skas(void);
extern void reboot_skas(void);
-extern int get_syscall(struct uml_pt_regs *regs);
/* irq.c */
extern int os_waiting_for_events(struct irq_fd *active_fds);
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-12-28 19:50:11 +0000