From 25bda50a0c7241dcb247483af2b7f961632020cc Mon Sep 17 00:00:00 2001 From: Max Filippov Date: Sun, 19 Oct 2014 07:42:22 +0400 Subject: hw/core/loader: implement address translation in uimage loader Such address translation is needed when load address recorded in uImage is a virtual address. When the actual load address is requested, return untranslated address: user that needs the translated address can always apply translation function to it and those that need it untranslated don't need to do the inverse translation. Add translation function pointer and its parameter to uimage_load prototype. Update all existing users. No user-visible functional changes. Cc: qemu-stable@nongnu.org Signed-off-by: Max Filippov Reviewed-by: Alexander Graf --- hw/core/loader.c | 17 +++++++++++++---- 1 file changed, 13 insertions(+), 4 deletions(-) (limited to 'hw/core/loader.c') diff --git a/hw/core/loader.c b/hw/core/loader.c index 5f3a859..bbe6eb3 100644 --- a/hw/core/loader.c +++ b/hw/core/loader.c @@ -477,7 +477,9 @@ static ssize_t gunzip(void *dst, size_t dstlen, uint8_t *src, /* Load a U-Boot image. */ static int load_uboot_image(const char *filename, hwaddr *ep, hwaddr *loadaddr, - int *is_linux, uint8_t image_type) + int *is_linux, uint8_t image_type, + uint64_t (*translate_fn)(void *, uint64_t), + void *translate_opaque) { int fd; int size; @@ -511,6 +513,9 @@ static int load_uboot_image(const char *filename, hwaddr *ep, hwaddr *loadaddr, switch (hdr->ih_type) { case IH_TYPE_KERNEL: address = hdr->ih_load; + if (translate_fn) { + address = translate_fn(translate_opaque, address); + } if (loadaddr) { *loadaddr = hdr->ih_load; } @@ -587,15 +592,19 @@ out: } int load_uimage(const char *filename, hwaddr *ep, hwaddr *loadaddr, - int *is_linux) + int *is_linux, + uint64_t (*translate_fn)(void *, uint64_t), + void *translate_opaque) { - return load_uboot_image(filename, ep, loadaddr, is_linux, IH_TYPE_KERNEL); + return load_uboot_image(filename, ep, loadaddr, is_linux, IH_TYPE_KERNEL, + translate_fn, translate_opaque); } /* Load a ramdisk. */ int load_ramdisk(const char *filename, hwaddr addr, uint64_t max_sz) { - return load_uboot_image(filename, NULL, &addr, NULL, IH_TYPE_RAMDISK); + return load_uboot_image(filename, NULL, &addr, NULL, IH_TYPE_RAMDISK, + NULL, NULL); } /* This simply prevents g_malloc in the function below from allocating -- cgit v1.1