diff options
| -rw-r--r-- | Documentation/lguest/lguest.c | 27 | ||||
| -rw-r--r-- | drivers/lguest/lguest_user.c | 31 |
2 files changed, 30 insertions, 28 deletions
diff --git a/Documentation/lguest/lguest.c b/Documentation/lguest/lguest.c index 140bd98a841..4950b03514e 100644 --- a/Documentation/lguest/lguest.c +++ b/Documentation/lguest/lguest.c @@ -473,9 +473,9 @@ static unsigned long setup_pagetables(unsigned long mem, unsigned long initrd_size, unsigned long page_offset) { - u32 *pgdir, *linear; + unsigned long *pgdir, *linear; unsigned int mapped_pages, i, linear_pages; - unsigned int ptes_per_page = getpagesize()/sizeof(u32); + unsigned int ptes_per_page = getpagesize()/sizeof(void *); /* Ideally we map all physical memory starting at page_offset. * However, if page_offset is 0xC0000000 we can only map 1G of physical @@ -505,7 +505,7 @@ static unsigned long setup_pagetables(unsigned long mem, * continue from there. */ for (i = 0; i < mapped_pages; i += ptes_per_page) { pgdir[(i + page_offset/getpagesize())/ptes_per_page] - = ((to_guest_phys(linear) + i*sizeof(u32)) + = ((to_guest_phys(linear) + i*sizeof(void *)) | PAGE_PRESENT); } @@ -537,12 +537,13 @@ static void concat(char *dst, char *args[]) * the base of guest "physical" memory, the top physical page to allow, the * top level pagetable, the entry point and the page_offset constant for the * Guest. */ -static int tell_kernel(u32 pgdir, u32 start, u32 page_offset) +static int tell_kernel(unsigned long pgdir, unsigned long start, + unsigned long page_offset) { - u32 args[] = { LHREQ_INITIALIZE, - (unsigned long)guest_base, - guest_limit / getpagesize(), - pgdir, start, page_offset }; + unsigned long args[] = { LHREQ_INITIALIZE, + (unsigned long)guest_base, + guest_limit / getpagesize(), + pgdir, start, page_offset }; int fd; verbose("Guest: %p - %p (%#lx)\n", @@ -586,7 +587,7 @@ static void wake_parent(int pipefd, int lguest_fd, struct device_list *devices) for (;;) { fd_set rfds = devices->infds; - u32 args[] = { LHREQ_BREAK, 1 }; + unsigned long args[] = { LHREQ_BREAK, 1 }; /* Wait until input is ready from one of the devices. */ select(devices->max_infd+1, &rfds, NULL, NULL, NULL); @@ -684,7 +685,7 @@ static u32 *dma2iov(unsigned long dma, struct iovec iov[], unsigned *num) static u32 *get_dma_buffer(int fd, void *key, struct iovec iov[], unsigned int *num, u32 *irq) { - u32 buf[] = { LHREQ_GETDMA, to_guest_phys(key) }; + unsigned long buf[] = { LHREQ_GETDMA, to_guest_phys(key) }; unsigned long udma; u32 *res; @@ -705,7 +706,7 @@ static u32 *get_dma_buffer(int fd, void *key, /* This is a convenient routine to send the Guest an interrupt. */ static void trigger_irq(int fd, u32 irq) { - u32 buf[] = { LHREQ_IRQ, irq }; + unsigned long buf[] = { LHREQ_IRQ, irq }; if (write(fd, buf, sizeof(buf)) != 0) err(1, "Triggering irq %i", irq); } @@ -787,7 +788,7 @@ static bool handle_console_input(int fd, struct device *dev) struct timeval now; gettimeofday(&now, NULL); if (now.tv_sec <= abort->start.tv_sec+1) { - u32 args[] = { LHREQ_BREAK, 0 }; + unsigned long args[] = { LHREQ_BREAK, 0 }; /* Close the fd so Waker will know it has to * exit. */ close(waker_fd); @@ -1365,7 +1366,7 @@ static void __attribute__((noreturn)) run_guest(int lguest_fd, struct device_list *device_list) { for (;;) { - u32 args[] = { LHREQ_BREAK, 0 }; + unsigned long args[] = { LHREQ_BREAK, 0 }; unsigned long arr[2]; int readval; diff --git a/drivers/lguest/lguest_user.c b/drivers/lguest/lguest_user.c index 5632ed82798..d4ac5f84642 100644 --- a/drivers/lguest/lguest_user.c +++ b/drivers/lguest/lguest_user.c @@ -43,7 +43,7 @@ static void setup_regs(struct lguest_regs *regs, unsigned long start) /*L:310 To send DMA into the Guest, the Launcher needs to be able to ask for a * DMA buffer. This is done by writing LHREQ_GETDMA and the key to * /dev/lguest. */ -static long user_get_dma(struct lguest *lg, const u32 __user *input) +static long user_get_dma(struct lguest *lg, const unsigned long __user *input) { unsigned long key, udma, irq; @@ -67,7 +67,7 @@ static long user_get_dma(struct lguest *lg, const u32 __user *input) /*L:315 To force the Guest to stop running and return to the Launcher, the * Waker sets writes LHREQ_BREAK and the value "1" to /dev/lguest. The * Launcher then writes LHREQ_BREAK and "0" to release the Waker. */ -static int break_guest_out(struct lguest *lg, const u32 __user *input) +static int break_guest_out(struct lguest *lg, const unsigned long __user *input) { unsigned long on; @@ -90,9 +90,9 @@ static int break_guest_out(struct lguest *lg, const u32 __user *input) /*L:050 Sending an interrupt is done by writing LHREQ_IRQ and an interrupt * number to /dev/lguest. */ -static int user_send_irq(struct lguest *lg, const u32 __user *input) +static int user_send_irq(struct lguest *lg, const unsigned long __user *input) { - u32 irq; + unsigned long irq; if (get_user(irq, input) != 0) return -EFAULT; @@ -142,8 +142,8 @@ static ssize_t read(struct file *file, char __user *user, size_t size,loff_t*o) return run_guest(lg, (unsigned long __user *)user); } -/*L:020 The initialization write supplies 5 32-bit values (in addition to the - * 32-bit LHREQ_INITIALIZE value). These are: +/*L:020 The initialization write supplies 5 pointer sized (32 or 64 bit) + * values (in addition to the LHREQ_INITIALIZE value). These are: * * base: The start of the Guest-physical memory inside the Launcher memory. * @@ -162,13 +162,13 @@ static ssize_t read(struct file *file, char __user *user, size_t size,loff_t*o) * quickly converted from physical to virtual by adding PAGE_OFFSET. It's * 0xC0000000 (3G) by default, but it's configurable at kernel build time. */ -static int initialize(struct file *file, const u32 __user *input) +static int initialize(struct file *file, const unsigned long __user *input) { /* "struct lguest" contains everything we (the Host) know about a * Guest. */ struct lguest *lg; int err; - u32 args[5]; + unsigned long args[5]; /* We grab the Big Lguest lock, which protects against multiple * simultaneous initializations. */ @@ -259,17 +259,18 @@ unlock: * start with a 32 bit number: for the first write this must be * LHREQ_INITIALIZE to set up the Guest. After that the Launcher can use * writes of other values to get DMA buffers and send interrupts. */ -static ssize_t write(struct file *file, const char __user *input, +static ssize_t write(struct file *file, const char __user *in, size_t size, loff_t *off) { /* Once the guest is initialized, we hold the "struct lguest" in the * file private data. */ struct lguest *lg = file->private_data; - u32 req; + const unsigned long __user *input = (const unsigned long __user *)in; + unsigned long req; if (get_user(req, input) != 0) return -EFAULT; - input += sizeof(req); + input++; /* If you haven't initialized, you must do that first. */ if (req != LHREQ_INITIALIZE && !lg) @@ -285,13 +286,13 @@ static ssize_t write(struct file *file, const char __user *input, switch (req) { case LHREQ_INITIALIZE: - return initialize(file, (const u32 __user *)input); + return initialize(file, input); case LHREQ_GETDMA: - return user_get_dma(lg, (const u32 __user *)input); + return user_get_dma(lg, input); case LHREQ_IRQ: - return user_send_irq(lg, (const u32 __user *)input); + return user_send_irq(lg, input); case LHREQ_BREAK: - return break_guest_out(lg, (const u32 __user *)input); + return break_guest_out(lg, input); default: return -EINVAL; } |