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xen.30824
xsa435-0-19.patch
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File xsa435-0-19.patch of Package xen.30824
From 21e3ef57e0406b6b9a783f721f29df8f91a00f99 Mon Sep 17 00:00:00 2001 From: Andrew Cooper <andrew.cooper3@citrix.com> Date: Tue, 28 Mar 2023 20:48:29 +0100 Subject: x86: Rename {domctl,sysctl}.cpu_policy.{cpuid,msr}_policy fields These weren't great names to begin with, and using {leaves,msrs} matches up better with the existing nr_{leaves,msr} parameters anyway. Furthermore, by renaming these fields we can get away with using some #define trickery to avoid the struct {cpuid,msr}_policy merge needing to happen in a single changeset. No functional change. Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com> Reviewed-by: Jan Beulich <jbeulich@suse.com> (cherry picked from commit 21e3ef57e0406b6b9a783f721f29df8f91a00f99) xen: Correct comments after renaming xen_{dom,sys}ctl_cpu_policy fields Fixes: 21e3ef57e040 ("x86: Rename {domctl,sysctl}.cpu_policy.{cpuid,msr}_policy fields") Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com> Reviewed-by: Roger Pau Monné <roger.pau@citrix.com> (cherry picked from commit 6e06d229d538ea51b92dc189546c522f5e903511) --- a/tools/libxc/xc_cpuid_x86.c +++ b/tools/libxc/xc_cpuid_x86.c @@ -168,9 +168,9 @@ int xc_get_system_cpu_policy(xc_interfac sysctl.cmd = XEN_SYSCTL_get_cpu_policy; sysctl.u.cpu_policy.index = index; sysctl.u.cpu_policy.nr_leaves = *nr_leaves; - set_xen_guest_handle(sysctl.u.cpu_policy.cpuid_policy, leaves); + set_xen_guest_handle(sysctl.u.cpu_policy.leaves, leaves); sysctl.u.cpu_policy.nr_msrs = *nr_msrs; - set_xen_guest_handle(sysctl.u.cpu_policy.msr_policy, msrs); + set_xen_guest_handle(sysctl.u.cpu_policy.msrs, msrs); ret = do_sysctl(xch, &sysctl); @@ -206,9 +206,9 @@ int xc_get_domain_cpu_policy(xc_interfac domctl.cmd = XEN_DOMCTL_get_cpu_policy; domctl.domain = domid; domctl.u.cpu_policy.nr_leaves = *nr_leaves; - set_xen_guest_handle(domctl.u.cpu_policy.cpuid_policy, leaves); + set_xen_guest_handle(domctl.u.cpu_policy.leaves, leaves); domctl.u.cpu_policy.nr_msrs = *nr_msrs; - set_xen_guest_handle(domctl.u.cpu_policy.msr_policy, msrs); + set_xen_guest_handle(domctl.u.cpu_policy.msrs, msrs); ret = do_domctl(xch, &domctl); @@ -255,9 +255,9 @@ int xc_set_domain_cpu_policy(xc_interfac domctl.cmd = XEN_DOMCTL_set_cpu_policy; domctl.domain = domid; domctl.u.cpu_policy.nr_leaves = nr_leaves; - set_xen_guest_handle(domctl.u.cpu_policy.cpuid_policy, leaves); + set_xen_guest_handle(domctl.u.cpu_policy.leaves, leaves); domctl.u.cpu_policy.nr_msrs = nr_msrs; - set_xen_guest_handle(domctl.u.cpu_policy.msr_policy, msrs); + set_xen_guest_handle(domctl.u.cpu_policy.msrs, msrs); domctl.u.cpu_policy.err_leaf = -1; domctl.u.cpu_policy.err_subleaf = -1; domctl.u.cpu_policy.err_msr = -1; --- a/xen/arch/x86/domctl.c +++ b/xen/arch/x86/domctl.c @@ -230,10 +230,10 @@ static int update_domain_cpu_policy(stru /* Merge the toolstack provided data. */ if ( (ret = x86_cpuid_copy_from_buffer( - new.cpuid, xdpc->cpuid_policy, xdpc->nr_leaves, + new.cpuid, xdpc->leaves, xdpc->nr_leaves, &err.leaf, &err.subleaf)) || (ret = x86_msr_copy_from_buffer( - new.msr, xdpc->msr_policy, xdpc->nr_msrs, &err.msr)) ) + new.msr, xdpc->msrs, xdpc->nr_msrs, &err.msr)) ) goto out; /* Trim any newly-stale out-of-range leaves. */ @@ -1441,20 +1441,20 @@ long arch_do_domctl( case XEN_DOMCTL_get_cpu_policy: /* Process the CPUID leaves. */ - if ( guest_handle_is_null(domctl->u.cpu_policy.cpuid_policy) ) + if ( guest_handle_is_null(domctl->u.cpu_policy.leaves) ) domctl->u.cpu_policy.nr_leaves = CPUID_MAX_SERIALISED_LEAVES; else if ( (ret = x86_cpuid_copy_to_buffer( d->arch.cpuid, - domctl->u.cpu_policy.cpuid_policy, + domctl->u.cpu_policy.leaves, &domctl->u.cpu_policy.nr_leaves)) ) break; /* Process the MSR entries. */ - if ( guest_handle_is_null(domctl->u.cpu_policy.msr_policy) ) + if ( guest_handle_is_null(domctl->u.cpu_policy.msrs) ) domctl->u.cpu_policy.nr_msrs = MSR_MAX_SERIALISED_ENTRIES; else if ( (ret = x86_msr_copy_to_buffer( d->arch.msr, - domctl->u.cpu_policy.msr_policy, + domctl->u.cpu_policy.msrs, &domctl->u.cpu_policy.nr_msrs)) ) break; --- a/xen/arch/x86/sysctl.c +++ b/xen/arch/x86/sysctl.c @@ -429,11 +429,11 @@ long arch_do_sysctl( ARRAY_SIZE(system_policies))]; /* Process the CPUID leaves. */ - if ( guest_handle_is_null(sysctl->u.cpu_policy.cpuid_policy) ) + if ( guest_handle_is_null(sysctl->u.cpu_policy.leaves) ) sysctl->u.cpu_policy.nr_leaves = CPUID_MAX_SERIALISED_LEAVES; else if ( (ret = x86_cpuid_copy_to_buffer( policy->cpuid, - sysctl->u.cpu_policy.cpuid_policy, + sysctl->u.cpu_policy.leaves, &sysctl->u.cpu_policy.nr_leaves)) ) break; @@ -445,11 +445,11 @@ long arch_do_sysctl( } /* Process the MSR entries. */ - if ( guest_handle_is_null(sysctl->u.cpu_policy.msr_policy) ) + if ( guest_handle_is_null(sysctl->u.cpu_policy.msrs) ) sysctl->u.cpu_policy.nr_msrs = MSR_MAX_SERIALISED_ENTRIES; else if ( (ret = x86_msr_copy_to_buffer( policy->msr, - sysctl->u.cpu_policy.msr_policy, + sysctl->u.cpu_policy.msrs, &sysctl->u.cpu_policy.nr_msrs)) ) break; --- a/xen/include/public/domctl.h +++ b/xen/include/public/domctl.h @@ -672,12 +672,10 @@ struct xen_domctl_set_target { * Query or set the CPUID and MSR policies for a specific domain. */ struct xen_domctl_cpu_policy { - uint32_t nr_leaves; /* IN/OUT: Number of leaves in/written to - * 'cpuid_policy'. */ - uint32_t nr_msrs; /* IN/OUT: Number of MSRs in/written to - * 'msr_domain_policy' */ - XEN_GUEST_HANDLE_64(xen_cpuid_leaf_t) cpuid_policy; /* IN/OUT */ - XEN_GUEST_HANDLE_64(xen_msr_entry_t) msr_policy; /* IN/OUT */ + uint32_t nr_leaves; /* IN/OUT: Number of leaves in/written to 'leaves' */ + uint32_t nr_msrs; /* IN/OUT: Number of MSRs in/written to 'msrs' */ + XEN_GUEST_HANDLE_64(xen_cpuid_leaf_t) leaves; /* IN/OUT */ + XEN_GUEST_HANDLE_64(xen_msr_entry_t) msrs; /* IN/OUT */ /* * OUT, set_policy only. Written in some (but not all) error cases to --- a/xen/include/public/sysctl.h +++ b/xen/include/public/sysctl.h @@ -1021,15 +1021,13 @@ struct xen_sysctl_cpu_policy { #define XEN_SYSCTL_cpu_policy_pv_default 4 #define XEN_SYSCTL_cpu_policy_hvm_default 5 uint32_t index; /* IN: Which policy to query? */ - uint32_t nr_leaves; /* IN/OUT: Number of leaves in/written to - * 'cpuid_policy', or the maximum number of leaves - * if the guest handle is NULL. */ - uint32_t nr_msrs; /* IN/OUT: Number of MSRs in/written to - * 'msr_policy', or the maximum number of MSRs if - * the guest handle is NULL. */ + uint32_t nr_leaves; /* IN/OUT: Number of leaves in/written to 'leaves', + * or the max number if 'leaves' is NULL. */ + uint32_t nr_msrs; /* IN/OUT: Number of MSRs in/written to 'msrs', or + * the max number of if 'msrs' is NULL. */ uint32_t _rsvd; /* Must be zero. */ - XEN_GUEST_HANDLE_64(xen_cpuid_leaf_t) cpuid_policy; /* OUT */ - XEN_GUEST_HANDLE_64(xen_msr_entry_t) msr_policy; /* OUT */ + XEN_GUEST_HANDLE_64(xen_cpuid_leaf_t) leaves; /* OUT */ + XEN_GUEST_HANDLE_64(xen_msr_entry_t) msrs; /* OUT */ }; typedef struct xen_sysctl_cpu_policy xen_sysctl_cpu_policy_t; DEFINE_XEN_GUEST_HANDLE(xen_sysctl_cpu_policy_t);
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