search for: paddr

...cifically am trying to understand the loadable segments of this ELF file. I ran readelf -a <filename> to get the information that I need. Below shows the details of the loadable segments in a much better format :- Loading ELF header #1. offset: 1320 filesize: 655360 memsize: 655360 vaddr: 0 paddr: 0 align: 0 flags: 0 Loading ELF header #2. offset: 656680 filesize: 65536 memsize: 65536 vaddr: 0 paddr: a0000 align: 0 flags: 0 Loading ELF header #3. offset: 722216 filesize: 1072955392 memsize: 1072955392 vaddr: 0 paddr: c0000 align: 0 flags: 0 Loading ELF header #4. offset: 1073677608 filesize...

...b_nslabs; static u64 start_dma_addr; -/* - * Both of these functions should avoid PFN_PHYS because phys_addr_t - * can be 32bit when dma_addr_t is 64bit leading to a loss in - * information if the shift is done before casting 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...

...iles changed, 72 deletions(-) diff --git a/arch/mips/include/asm/jazzdma.h b/arch/mips/include/asm/jazzdma.h index d13f940022d5f9..c831da7fa89803 100644 --- a/arch/mips/include/asm/jazzdma.h +++ b/arch/mips/include/asm/jazzdma.h @@ -10,8 +10,6 @@ */ extern unsigned long vdma_alloc(unsigned long paddr, unsigned long size); extern int vdma_free(unsigned long laddr); -extern int vdma_remap(unsigned long laddr, unsigned long paddr, - unsigned long size); extern unsigned long vdma_phys2log(unsigned long paddr); extern unsigned long vdma_log2phys(unsigned long laddr); extern void vdma_stat...

...ICE: + case DMA_BIDIRECTIONAL: + dma_cache_inv((unsigned long)addr, size); + break; default: BUG(); } @@ -82,7 +94,7 @@ static inline void dma_sync_virt(void *addr, size_t size, * configured then the bulk of this loop gets optimized out. */ static inline void dma_sync_phys(phys_addr_t paddr, size_t size, - enum dma_data_direction dir) + enum dma_data_direction dir, bool for_device) { struct page *page = pfn_to_page(paddr >> PAGE_SHIFT); unsigned long offset = paddr & ~PAGE_MASK; @@ -90,18 +102,20 @@ static inline void dma_sync_phys(phys_addr_t paddr, size_t size,...

...stand the loadable segments of this ELF >file. > >I ran readelf -a <filename> to get the information that I need. Below shows >the details of the loadable segments in a much better format :- > >Loading ELF header #1. offset: 1320 filesize: 655360 memsize: 655360 vaddr: >0 paddr: 0 align: 0 flags: 0 >Loading ELF header #2. offset: 656680 filesize: 65536 memsize: 65536 vaddr: >0 paddr: a0000 align: 0 flags: 0 >Loading ELF header #3. offset: 722216 filesize: 1072955392 memsize: >1072955392 vaddr: 0 paddr: c0000 align: 0 flags: 0 >Loading ELF header #4. offset:...

....size main, .-main .ident "GCC: (GNU) 4.1.0 20050922 (experimental)" .section .note.GNU-stack,"",@progbits binutils-2.15.94.0.2.2 produces for this code empty .data and .bss sections: Program Header: PHDR off 0x00000034 vaddr 0x08048034 paddr 0x08048034 align 2**2 filesz 0x000000c0 memsz 0x000000c0 flags r-x INTERP off 0x000000f4 vaddr 0x080480f4 paddr 0x080480f4 align 2**0 filesz 0x0000002a memsz 0x0000002a flags r-- LOAD off 0x00000000 vaddr 0x08048000 paddr 0x08048000 align 2**12 filesz 0x000001...

..._iomaps); +/* + * Used for mutual exclusion between writers of apei_iomaps list, for + * synchronization between readers and writer. + */ +static DEFINE_SPINLOCK(apei_iomaps_lock); + +struct apei_iomap { + struct list_head list; + void __iomem *vaddr; + unsigned long size; + paddr_t paddr; +}; + +static struct apei_iomap *__apei_find_iomap(paddr_t paddr, + unsigned long size) +{ + struct apei_iomap *map; + + list_for_each_entry(map, &apei_iomaps, list) { + if (map->paddr + map->size >= paddr + s...

On Fri, May 19, 2023 at 01:49:46PM +0100, Andrew Cooper wrote: > > The alternative would be to finally merge swiotlb-xen into swiotlb, in > > which case we might be able to do this later. Let me see what I can > > do there. > > If that is an option, it would be great to reduce the special-cashing. I think it's doable, and I've been wanting it for a while. I just

Convert the AMD iommu driver to the dma-iommu api. Remove the iova handling and reserve region code from the AMD iommu driver. Change-log: V6: -add more details to the description of patch 001-iommu-amd-Remove-unnecessary-locking-from-AMD-iommu-.patch -rename handle_deferred_device to iommu_dma_deferred_attach -fix double tabs in 0003-iommu-dma-iommu-Handle-deferred-devices.patch V5: -Rebase on

Convert the AMD iommu driver to the dma-iommu api. Remove the iova handling and reserve region code from the AMD iommu driver. Change-log: V4: -Rebase on top of linux-next -Split the removing of the unnecessary locking in the amd iommu driver into a seperate patch -refactor the "iommu/dma-iommu: Handle deferred devices" patch and address comments v3: -rename dma_limit to dma_mask -exit

Convert the AMD iommu driver to the dma-iommu api. Remove the iova handling and reserve region code from the AMD iommu driver. Change-log: V4: -Rebase on top of linux-next -Split the removing of the unnecessary locking in the amd iommu driver into a seperate patch -refactor the "iommu/dma-iommu: Handle deferred devices" patch and address comments v3: -rename dma_limit to dma_mask -exit

...and a "Reading data" in the R console, but nothing else. The PERL client #! /usr/bin/perl use strict; use Socket; # initialize host and port my $host = shift || 'localhost'; my $port = shift || 7890; my $proto = getprotobyname('tcp'); my $iaddr = inet_aton($host); my $paddr = sockaddr_in($port, $iaddr); socket(SOCKET, PF_INET, SOCK_STREAM, $proto) or die "socket: $!"; connect(SOCKET, $paddr) or die "connect: $!"; print SOCKET "Hello \n"; close SOCKET or die "close: $!"; The PERL server #! /usr/bin/perl -w use strict; use Soc...

...e: warn if process starts with executable stack" objdump -x shows: /usr/lib/klibc/bin/sh: file format elf32-powerpc /usr/lib/klibc/bin/sh architecture: powerpc:common, flags 0x00000102: EXEC_P, D_PAGED start address 0x10000140 Program Header: PHDR off 0x00000034 vaddr 0x10000034 paddr 0x10000034 align 2**2 filesz 0x000000a0 memsz 0x000000a0 flags r-x INTERP off 0x000000d4 vaddr 0x100000d4 paddr 0x100000d4 align 2**0 filesz 0x0000002a memsz 0x0000002a flags r-- LOAD off 0x00000000 vaddr 0x10000000 paddr 0x10000000 align 2**16 filesz 0x0...

...prot); + entry->prot, GFP_KERNEL); if (ret) goto out; map_size = 0; @@ -2360,31 +2360,26 @@ static int __iommu_map(struct iommu_domain *domain, unsigned long iova, return ret; } -static int _iommu_map(struct iommu_domain *domain, unsigned long iova, - phys_addr_t paddr, size_t size, int prot, gfp_t gfp) +int iommu_map(struct iommu_domain *domain, unsigned long iova, + phys_addr_t paddr, size_t size, int prot, gfp_t gfp) { const struct iommu_domain_ops *ops = domain->ops; int ret; + might_sleep_if(gfpflags_allow_blocking(gfp)); + ret = __iommu_ma...

...prot); + entry->prot, GFP_KERNEL); if (ret) goto out; map_size = 0; @@ -2360,31 +2360,26 @@ static int __iommu_map(struct iommu_domain *domain, unsigned long iova, return ret; } -static int _iommu_map(struct iommu_domain *domain, unsigned long iova, - phys_addr_t paddr, size_t size, int prot, gfp_t gfp) +int iommu_map(struct iommu_domain *domain, unsigned long iova, + phys_addr_t paddr, size_t size, int prot, gfp_t gfp) { const struct iommu_domain_ops *ops = domain->ops; int ret; + might_sleep_if(gfpflags_allow_blocking(gfp)); + ret = __iommu_ma...

...prot); + entry->prot, GFP_KERNEL); if (ret) goto out; map_size = 0; @@ -2360,31 +2360,26 @@ static int __iommu_map(struct iommu_domain *domain, unsigned long iova, return ret; } -static int _iommu_map(struct iommu_domain *domain, unsigned long iova, - phys_addr_t paddr, size_t size, int prot, gfp_t gfp) +int iommu_map(struct iommu_domain *domain, unsigned long iova, + phys_addr_t paddr, size_t size, int prot, gfp_t gfp) { const struct iommu_domain_ops *ops = domain->ops; int ret; + might_sleep_if(gfpflags_allow_blocking(gfp)); + ret = __iommu_ma...

...So I build and install PAE-disabled kernel (for dom0), but I can''t find the way to turn off PAE i XEN micro-kernel. Is there any manner to change XEN micro-kernel in 3.1.0 version to be PAE-disabled ? I get folowing messages, when booting xen kernel: (XEN) Xen kernel: 32-bit, PAE, lsb, paddr 0x100000 -> 0x664000 (XEN) Dom0 kernel: 32-bit, lsb (XEN) Mismatch between Xen and DOM0 kernel (XEN) (XEN) **************************************** (XEN) Panic on CPU 0: (XEN) Could not set up DOM0 guest OS (XEN) **************************************** (XEN) (XEN) Reboot in five seconds......

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,

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