[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [PATCH 05/17] x86: rename {get,put}_user() to {get,put}_guest()
Bring them (back) in line with __{get,put}_guest(). Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx> --- a/xen/arch/x86/domain.c +++ b/xen/arch/x86/domain.c @@ -1626,19 +1626,19 @@ static void load_segments(struct vcpu *n if ( !ring_1(regs) ) { - ret = put_user(regs->ss, esp-1); - ret |= put_user(regs->esp, esp-2); + ret = put_guest(regs->ss, esp - 1); + ret |= put_guest(regs->esp, esp - 2); esp -= 2; } if ( ret | - put_user(rflags, esp-1) | - put_user(cs_and_mask, esp-2) | - put_user(regs->eip, esp-3) | - put_user(uregs->gs, esp-4) | - put_user(uregs->fs, esp-5) | - put_user(uregs->es, esp-6) | - put_user(uregs->ds, esp-7) ) + put_guest(rflags, esp - 1) | + put_guest(cs_and_mask, esp - 2) | + put_guest(regs->eip, esp - 3) | + put_guest(uregs->gs, esp - 4) | + put_guest(uregs->fs, esp - 5) | + put_guest(uregs->es, esp - 6) | + put_guest(uregs->ds, esp - 7) ) { gprintk(XENLOG_ERR, "error while creating compat failsafe callback frame\n"); @@ -1667,17 +1667,17 @@ static void load_segments(struct vcpu *n cs_and_mask = (unsigned long)regs->cs | ((unsigned long)vcpu_info(n, evtchn_upcall_mask) << 32); - if ( put_user(regs->ss, rsp- 1) | - put_user(regs->rsp, rsp- 2) | - put_user(rflags, rsp- 3) | - put_user(cs_and_mask, rsp- 4) | - put_user(regs->rip, rsp- 5) | - put_user(uregs->gs, rsp- 6) | - put_user(uregs->fs, rsp- 7) | - put_user(uregs->es, rsp- 8) | - put_user(uregs->ds, rsp- 9) | - put_user(regs->r11, rsp-10) | - put_user(regs->rcx, rsp-11) ) + if ( put_guest(regs->ss, rsp - 1) | + put_guest(regs->rsp, rsp - 2) | + put_guest(rflags, rsp - 3) | + put_guest(cs_and_mask, rsp - 4) | + put_guest(regs->rip, rsp - 5) | + put_guest(uregs->gs, rsp - 6) | + put_guest(uregs->fs, rsp - 7) | + put_guest(uregs->es, rsp - 8) | + put_guest(uregs->ds, rsp - 9) | + put_guest(regs->r11, rsp - 10) | + put_guest(regs->rcx, rsp - 11) ) { gprintk(XENLOG_ERR, "error while creating failsafe callback frame\n"); --- a/xen/include/asm-x86/uaccess.h +++ b/xen/include/asm-x86/uaccess.h @@ -27,14 +27,12 @@ extern void __put_user_bad(void); #define UA_DROP(args...) /** - * get_user: - Get a simple variable from user space. + * get_guest: - Get a simple variable from guest space. * @x: Variable to store result. - * @ptr: Source address, in user space. - * - * Context: User context only. This function may sleep. + * @ptr: Source address, in guest space. * - * This macro copies a single simple variable from user space to kernel - * space. It supports simple types like char and int, but not larger + * This macro load a single simple variable from guest space. + * It supports simple types like char and int, but not larger * data types like structures or arrays. * * @ptr must have pointer-to-simple-variable type, and the result of @@ -43,18 +41,15 @@ extern void __put_user_bad(void); * Returns zero on success, or -EFAULT on error. * On error, the variable @x is set to zero. */ -#define get_user(x,ptr) \ - __get_user_check((x),(ptr),sizeof(*(ptr))) +#define get_guest(x, ptr) get_guest_check(x, ptr, sizeof(*(ptr))) /** - * put_user: - Write a simple value into user space. - * @x: Value to copy to user space. - * @ptr: Destination address, in user space. - * - * Context: User context only. This function may sleep. + * put_guest: - Write a simple value into guest space. + * @x: Value to store in guest space. + * @ptr: Destination address, in guest space. * - * This macro copies a single simple value from kernel space to user - * space. It supports simple types like char and int, but not larger + * This macro stores a single simple value from to guest space. + * It supports simple types like char and int, but not larger * data types like structures or arrays. * * @ptr must have pointer-to-simple-variable type, and @x must be assignable @@ -62,8 +57,8 @@ extern void __put_user_bad(void); * * Returns zero on success, or -EFAULT on error. */ -#define put_user(x,ptr) \ - __put_user_check((__typeof__(*(ptr)))(x),(ptr),sizeof(*(ptr))) +#define put_guest(x, ptr) \ + put_guest_check((__typeof__(*(ptr)))(x), ptr, sizeof(*(ptr))) /** * __get_guest: - Get a simple variable from guest space, with less checking. @@ -119,7 +114,7 @@ extern void __put_user_bad(void); err_; \ }) -#define __put_user_check(x, ptr, size) \ +#define put_guest_check(x, ptr, size) \ ({ \ __typeof__(*(ptr)) __user *ptr_ = (ptr); \ __typeof__(size) size_ = (size); \ @@ -141,7 +136,7 @@ extern void __put_user_bad(void); err_; \ }) -#define __get_user_check(x, ptr, size) \ +#define get_guest_check(x, ptr, size) \ ({ \ __typeof__(*(ptr)) __user *ptr_ = (ptr); \ __typeof__(size) size_ = (size); \
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