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...ing to 64bit. - */ -static inline dma_addr_t xen_phys_to_bus(phys_addr_t paddr) -{ - unsigned long bfn = pfn_to_bfn(PFN_DOWN(paddr)); - dma_addr_t dma = (dma_addr_t)bfn << PAGE_SHIFT; - - dma |= paddr & ~PAGE_MASK; - - return dma; -} - -static inline phys_addr_t xen_bus_to_phys(dma_addr_t baddr) -{ - unsigned long pfn = bfn_to_pfn(PFN_DOWN(baddr)); - dma_addr_t dma = (dma_addr_t)pfn << PAGE_SHIFT; - phys_addr_t paddr = dma; - - paddr |= baddr & ~PAGE_MASK; - - return paddr; -} - -static inline dma_addr_t xen_virt_to_bus(void *address) -{ - return xen_phys_to_bus(virt_to_phys(add...

Hi all, this patch series introduces support for running Linux on top of Xen inside a virtual machine with virtio devices (nested virt scenario). The problem is that Linux virtio drivers use virt_to_phys to get the guest pseudo-physical addresses to pass to the backend, which doesn't work as expected on Xen. Switching the virtio drivers to the dma APIs (dma_alloc_coherent,

Hi all, this patch series introduces support for running Linux on top of Xen inside a virtual machine with virtio devices (nested virt scenario). The problem is that Linux virtio drivers use virt_to_phys to get the guest pseudo-physical addresses to pass to the backend, which doesn't work as expected on Xen. Switching the virtio drivers to the dma APIs (dma_alloc_coherent,

ya trivial series... Joe Perches (44): arch/arm: Remove unnecessary semicolons arch/microblaze: Remove unnecessary semicolons arch/um: Remove unnecessary semicolons drivers/cpufreq: Remove unnecessary semicolons drivers/gpio: Remove unnecessary semicolons drivers/i2c: Remove unnecessary semicolons drivers/isdn: Remove unnecessary semicolons drivers/leds: Remove unnecessary

ya trivial series... Joe Perches (44): arch/arm: Remove unnecessary semicolons arch/microblaze: Remove unnecessary semicolons arch/um: Remove unnecessary semicolons drivers/cpufreq: Remove unnecessary semicolons drivers/gpio: Remove unnecessary semicolons drivers/i2c: Remove unnecessary semicolons drivers/isdn: Remove unnecessary semicolons drivers/leds: Remove unnecessary

ya trivial series... Joe Perches (44): arch/arm: Remove unnecessary semicolons arch/microblaze: Remove unnecessary semicolons arch/um: Remove unnecessary semicolons drivers/cpufreq: Remove unnecessary semicolons drivers/gpio: Remove unnecessary semicolons drivers/i2c: Remove unnecessary semicolons drivers/isdn: Remove unnecessary semicolons drivers/leds: Remove unnecessary

ya trivial series... Joe Perches (44): arch/arm: Remove unnecessary semicolons arch/microblaze: Remove unnecessary semicolons arch/um: Remove unnecessary semicolons drivers/cpufreq: Remove unnecessary semicolons drivers/gpio: Remove unnecessary semicolons drivers/i2c: Remove unnecessary semicolons drivers/isdn: Remove unnecessary semicolons drivers/leds: Remove unnecessary

Hi all, this patch series enables xen-swiotlb on arm and arm64. It has been heavily reworked compared to the previous versions in order to achieve better performances and to address review comments. We are not using dma_mark_clean to ensure coherency anymore. We call the platform implementation of map_page and unmap_page. We assume that dom0 has been mapped 1:1 (physical address == machine

Hi all, Here''s a work in progress series whcih does a partial revert of the previous swiotlb changes, and does a partial replacement with Becky Bruce''s series. The most important difference is Becky''s use of phys_addr_t rather than page+offset to represent arbitrary pages. This turns out to be simpler. I didn''t replicate the map_single_page changes, since

Hi all, this series replaced the DMA_ATTR_NON_CONSISTENT flag to dma_alloc_attrs with a separate new dma_alloc_pages API, which is available on all platforms. In addition to cleaning up the convoluted code path, this ensures that other drivers that have asked for better support for non-coherent DMA to pages with incurring bounce buffering over can finally be properly supported. I'm still a