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system/iommufd: Use uint64_t type for IOVA mapping size

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The 'ram_addr_t' type is described as:

  a QEMU internal address space that maps guest RAM physical
  addresses into an intermediate address space that can map
  to host virtual address spaces.

This doesn't represent well an IOVA mapping size. Simply use
the uint64_t type.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Link: https://lore.kernel.org/qemu-devel/20250930123528.42878-2-philmd@linaro.org
Signed-off-by: Cédric Le Goater <clg@redhat.com>
This commit is contained in:
Philippe Mathieu-Daudé
2025-09-30 14:35:25 +02:00
committed by Cédric Le Goater
parent 1d9a832b58
commit 70a7e33ddb
2 changed files with 6 additions and 6 deletions
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6
backends/iommufd.c
View File

@ -197,7 +197,7 @@ void iommufd_backend_free_id(IOMMUFDBackend *be, uint32_t id)
}
int iommufd_backend_map_dma(IOMMUFDBackend *be, uint32_t ioas_id, hwaddr iova,
ram_addr_t size, void *vaddr, bool readonly)
uint64_t size, void *vaddr, bool readonly)
{
int ret, fd = be->fd;
struct iommu_ioas_map map = {
@ -230,7 +230,7 @@ int iommufd_backend_map_dma(IOMMUFDBackend *be, uint32_t ioas_id, hwaddr iova,
}
int iommufd_backend_map_file_dma(IOMMUFDBackend *be, uint32_t ioas_id,
hwaddr iova, ram_addr_t size,
hwaddr iova, uint64_t size,
int mfd, unsigned long start, bool readonly)
{
int ret, fd = be->fd;
@ -268,7 +268,7 @@ int iommufd_backend_map_file_dma(IOMMUFDBackend *be, uint32_t ioas_id,
}
int iommufd_backend_unmap_dma(IOMMUFDBackend *be, uint32_t ioas_id,
hwaddr iova, ram_addr_t size)
hwaddr iova, uint64_t size)
{
int ret, fd = be->fd;
struct iommu_ioas_unmap unmap = {

6
include/system/iommufd.h
View File

@ -45,12 +45,12 @@ bool iommufd_backend_alloc_ioas(IOMMUFDBackend *be, uint32_t *ioas_id,
Error **errp);
void iommufd_backend_free_id(IOMMUFDBackend *be, uint32_t id);
int iommufd_backend_map_file_dma(IOMMUFDBackend *be, uint32_t ioas_id,
hwaddr iova, ram_addr_t size, int fd,
hwaddr iova, uint64_t size, int fd,
unsigned long start, bool readonly);
int iommufd_backend_map_dma(IOMMUFDBackend *be, uint32_t ioas_id, hwaddr iova,
ram_addr_t size, void *vaddr, bool readonly);
uint64_t size, void *vaddr, bool readonly);
int iommufd_backend_unmap_dma(IOMMUFDBackend *be, uint32_t ioas_id,
hwaddr iova, ram_addr_t size);
hwaddr iova, uint64_t size);
bool iommufd_backend_get_device_info(IOMMUFDBackend *be, uint32_t devid,
uint32_t *type, void *data, uint32_t len,
uint64_t *caps, Error **errp);