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charset="utf-8" From: Grygorii Strashko The d->arch.physaddr_bitsize field is used only by PV32 code so as the domain_clamp_alloc_bitsize() function. Hence move domain_clamp_alloc_bitsize() function into PV32 code and convert it to macro. Signed-off-by: Grygorii Strashko Reviewed-by: Jan Beulich --- changes in v4: - rebase - split out moving d->arch.physaddr_bitsize in separate patch - fix comments for domain_clamp_alloc_bitsize() macro xen/arch/x86/include/asm/mm.h | 12 ++++++++++-- xen/arch/x86/x86_64/mm.c | 7 ------- 2 files changed, 10 insertions(+), 9 deletions(-) diff --git a/xen/arch/x86/include/asm/mm.h b/xen/arch/x86/include/asm/mm.h index 9438f5ea0119..89e8940c3316 100644 --- a/xen/arch/x86/include/asm/mm.h +++ b/xen/arch/x86/include/asm/mm.h @@ -619,8 +619,16 @@ void __iomem *ioremap_wc(paddr_t pa, size_t len); =20 extern int memory_add(unsigned long spfn, unsigned long epfn, unsigned int= pxm); =20 -unsigned int domain_clamp_alloc_bitsize(struct domain *d, unsigned int bit= s); -#define domain_clamp_alloc_bitsize(d, bits) domain_clamp_alloc_bitsize(d, = bits) +#ifdef CONFIG_PV32 +#define domain_clamp_alloc_bitsize(d, bits) ({ = \ + struct domain *_d =3D (d); = \ + = \ + ((_d && = \ + _d->arch.physaddr_bitsize) = \ + ? min_t(unsigned int, _d->arch.physaddr_bitsize, bits) = \ + : bits); = \ +}) +#endif =20 unsigned long domain_get_maximum_gpfn(struct domain *d); =20 diff --git a/xen/arch/x86/x86_64/mm.c b/xen/arch/x86/x86_64/mm.c index 42fd4fe4e9b5..8eadab7933d0 100644 --- a/xen/arch/x86/x86_64/mm.c +++ b/xen/arch/x86/x86_64/mm.c @@ -1119,13 +1119,6 @@ unmap: return ret; } =20 -unsigned int domain_clamp_alloc_bitsize(struct domain *d, unsigned int bit= s) -{ - if ( (d =3D=3D NULL) || (d->arch.physaddr_bitsize =3D=3D 0) ) - return bits; - return min(d->arch.physaddr_bitsize, bits); -} - static int transfer_pages_to_heap(struct mem_hotadd_info *info) { unsigned long i; --=20 2.34.1 From nobody Thu Dec 18 08:15:15 2025 Delivered-To: importer@patchew.org Received-SPF: pass (zohomail.com: domain of lists.xenproject.org designates 192.237.175.120 as permitted sender) client-ip=192.237.175.120; envelope-from=xen-devel-bounces@lists.xenproject.org; helo=lists.xenproject.org; Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of lists.xenproject.org designates 192.237.175.120 as permitted sender) smtp.mailfrom=xen-devel-bounces@lists.xenproject.org; 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charset="utf-8" From: Grygorii Strashko The d->arch.physaddr_bitsize field is used only by PV32 code, so move d->arch.physaddr_bitsize field under PV32 ifdef into struct pv_domain. Signed-off-by: Grygorii Strashko Reviewed-by: Andrew Cooper --- changes in v4: - rebase - new patch xen/arch/x86/include/asm/domain.h | 6 +++--- xen/arch/x86/include/asm/mm.h | 4 ++-- xen/arch/x86/pv/dom0_build.c | 7 +++++-- xen/arch/x86/pv/domain.c | 2 +- 4 files changed, 11 insertions(+), 8 deletions(-) diff --git a/xen/arch/x86/include/asm/domain.h b/xen/arch/x86/include/asm/d= omain.h index 7e5cbd11a464..16cd45cc32c0 100644 --- a/xen/arch/x86/include/asm/domain.h +++ b/xen/arch/x86/include/asm/domain.h @@ -290,6 +290,9 @@ struct pv_domain =20 #ifdef CONFIG_PV32 unsigned int hv_compat_vstart; + + /* Maximum physical-address bitwidth supported by this guest. */ + unsigned int physaddr_bitsize; #endif =20 /* map_domain_page() mapping cache. */ @@ -319,9 +322,6 @@ struct arch_domain { struct page_info *perdomain_l3_pg; =20 - /* Maximum physical-address bitwidth supported by this guest. */ - unsigned int physaddr_bitsize; - /* I/O-port admin-specified access capabilities. */ struct rangeset *ioport_caps; uint32_t pci_cf8; diff --git a/xen/arch/x86/include/asm/mm.h b/xen/arch/x86/include/asm/mm.h index 89e8940c3316..734e6b3af1d6 100644 --- a/xen/arch/x86/include/asm/mm.h +++ b/xen/arch/x86/include/asm/mm.h @@ -624,8 +624,8 @@ extern int memory_add(unsigned long spfn, unsigned long= epfn, unsigned int pxm); struct domain *_d =3D (d); = \ = \ ((_d && = \ - _d->arch.physaddr_bitsize) = \ - ? min_t(unsigned int, _d->arch.physaddr_bitsize, bits) = \ + _d->arch.pv.physaddr_bitsize) = \ + ? min_t(unsigned int, _d->arch.pv.physaddr_bitsize, bits) = \ : bits); = \ }) #endif diff --git a/xen/arch/x86/pv/dom0_build.c b/xen/arch/x86/pv/dom0_build.c index 418b453ba8bf..9a11a0a16b4e 100644 --- a/xen/arch/x86/pv/dom0_build.c +++ b/xen/arch/x86/pv/dom0_build.c @@ -626,8 +626,10 @@ static int __init dom0_construct(const struct boot_dom= ain *bd) initrd_mfn =3D paddr_to_pfn(initrd->start); mfn =3D initrd_mfn; count =3D PFN_UP(initrd_len); - if ( d->arch.physaddr_bitsize && - ((mfn + count - 1) >> (d->arch.physaddr_bitsize - PAGE_SHIFT)= ) ) + +#ifdef CONFIG_PV32 + if ( d->arch.pv.physaddr_bitsize && + ((mfn + count - 1) >> (d->arch.pv.physaddr_bitsize - PAGE_SHI= FT)) ) { order =3D get_order_from_pages(count); page =3D alloc_domheap_pages(d, order, MEMF_no_scrub); @@ -650,6 +652,7 @@ static int __init dom0_construct(const struct boot_doma= in *bd) initrd->start =3D pfn_to_paddr(initrd_mfn); } else +#endif { while ( count-- ) if ( assign_pages(mfn_to_page(_mfn(mfn++)), 1, d, 0) ) diff --git a/xen/arch/x86/pv/domain.c b/xen/arch/x86/pv/domain.c index ca5f6920516e..01499582d2d6 100644 --- a/xen/arch/x86/pv/domain.c +++ b/xen/arch/x86/pv/domain.c @@ -257,7 +257,7 @@ int switch_compat(struct domain *d) d->arch.pv.hv_compat_vstart =3D __HYPERVISOR_COMPAT_VIRT_START; =20 if ( MACH2PHYS_COMPAT_NR_ENTRIES(d) < max_page ) - d->arch.physaddr_bitsize =3D + d->arch.pv.physaddr_bitsize =3D /* 2^n entries can be contained in guest's p2m mapping space */ fls(MACH2PHYS_COMPAT_NR_ENTRIES(d)) - 1 + PAGE_SHIFT; =20 --=20 2.34.1