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Re: [Qemu-devel] [PULL for-2.10 6/7] xen/mapcache: introduce xen_replace
From: |
Anthony PERARD |
Subject: |
Re: [Qemu-devel] [PULL for-2.10 6/7] xen/mapcache: introduce xen_replace_cache_entry() |
Date: |
Fri, 21 Jul 2017 14:50:57 +0100 |
User-agent: |
Mutt/1.8.3 (2017-05-23) |
On Tue, Jul 18, 2017 at 03:22:41PM -0700, Stefano Stabellini wrote:
> From: Igor Druzhinin <address@hidden>
...
> +static uint8_t *xen_replace_cache_entry_unlocked(hwaddr old_phys_addr,
> + hwaddr new_phys_addr,
> + hwaddr size)
> +{
> + MapCacheEntry *entry;
> + hwaddr address_index, address_offset;
> + hwaddr test_bit_size, cache_size = size;
> +
> + address_index = old_phys_addr >> MCACHE_BUCKET_SHIFT;
> + address_offset = old_phys_addr & (MCACHE_BUCKET_SIZE - 1);
> +
> + assert(size);
> + /* test_bit_size is always a multiple of XC_PAGE_SIZE */
> + test_bit_size = size + (old_phys_addr & (XC_PAGE_SIZE - 1));
> + if (test_bit_size % XC_PAGE_SIZE) {
> + test_bit_size += XC_PAGE_SIZE - (test_bit_size % XC_PAGE_SIZE);
> + }
> + cache_size = size + address_offset;
> + if (cache_size % MCACHE_BUCKET_SIZE) {
> + cache_size += MCACHE_BUCKET_SIZE - (cache_size % MCACHE_BUCKET_SIZE);
> + }
> +
> + entry = &mapcache->entry[address_index % mapcache->nr_buckets];
> + while (entry && !(entry->paddr_index == address_index &&
> + entry->size == cache_size)) {
> + entry = entry->next;
> + }
> + if (!entry) {
> + DPRINTF("Trying to update an entry for %lx " \
> + "that is not in the mapcache!\n", old_phys_addr);
> + return NULL;
> + }
> +
> + address_index = new_phys_addr >> MCACHE_BUCKET_SHIFT;
> + address_offset = new_phys_addr & (MCACHE_BUCKET_SIZE - 1);
> +
> + fprintf(stderr, "Replacing a dummy mapcache entry for %lx with %lx\n",
> + old_phys_addr, new_phys_addr);
Looks likes this does not build on 32bits.
in:
http://logs.test-lab.xenproject.org/osstest/logs/112041/build-i386/6.ts-xen-build.log
/home/osstest/build.112041.build-i386/xen/tools/qemu-xen-dir/hw/i386/xen/xen-mapcache.c:
In function 'xen_replace_cache_entry_unlocked':
/home/osstest/build.112041.build-i386/xen/tools/qemu-xen-dir/hw/i386/xen/xen-mapcache.c:539:13:
error: format '%lx' expects argument of type 'long unsigned int', but argument
3 has type 'hwaddr' [-Werror=format=]
old_phys_addr, new_phys_addr);
^
/home/osstest/build.112041.build-i386/xen/tools/qemu-xen-dir/hw/i386/xen/xen-mapcache.c:539:13:
error: format '%lx' expects argument of type 'long unsigned int', but argument
4 has type 'hwaddr' [-Werror=format=]
cc1: all warnings being treated as errors
CC i386-softmmu/target/i386/gdbstub.o
/home/osstest/build.112041.build-i386/xen/tools/qemu-xen-dir/rules.mak:66:
recipe for target 'hw/i386/xen/xen-mapcache.o' failed
> +
> + xen_remap_bucket(entry, entry->vaddr_base,
> + cache_size, address_index, false);
> + if (!test_bits(address_offset >> XC_PAGE_SHIFT,
> + test_bit_size >> XC_PAGE_SHIFT,
> + entry->valid_mapping)) {
> + DPRINTF("Unable to update a mapcache entry for %lx!\n",
> old_phys_addr);
> + return NULL;
> + }
> +
> + return entry->vaddr_base + address_offset;
> +}
> +
--
Anthony PERARD
- [Qemu-devel] [PULL for-2.0 0/7] please pull xen-20170718-tag, Stefano Stabellini, 2017/07/18
- [Qemu-devel] [PULL for-2.10 1/7] hw/xen: Set emu_mask for igd_opregion register, Stefano Stabellini, 2017/07/18
- [Qemu-devel] [PULL for-2.10 4/7] xen: move physmap saving into a separate function, Stefano Stabellini, 2017/07/18
- [Qemu-devel] [PULL for-2.10 2/7] xen_pt_msi.c: Check for xen_host_pci_get_* failures in xen_pt_msix_init(), Stefano Stabellini, 2017/07/18
- [Qemu-devel] [PULL for-2.10 5/7] xen/mapcache: add an ability to create dummy mappings, Stefano Stabellini, 2017/07/18
- [Qemu-devel] [PULL for-2.10 3/7] xen-platform: separate unplugging of NVMe disks, Stefano Stabellini, 2017/07/18
- [Qemu-devel] [PULL for-2.10 6/7] xen/mapcache: introduce xen_replace_cache_entry(), Stefano Stabellini, 2017/07/18
- [Qemu-devel] [PULL for-2.10 7/7] xen: don't use xenstore to save/restore physmap anymore, Stefano Stabellini, 2017/07/18
Re: [Qemu-devel] [PULL for-2.0 0/7] please pull xen-20170718-tag, Peter Maydell, 2017/07/19