Message ID | 20230302123029.153265-50-pbonzini@redhat.com |
---|---|
State | New |
Headers | show
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Thu, 02 Mar 2023 04:32:56 -0800 (PST) X-Google-Smtp-Source: AK7set81cGnp4ywwWwHbrFC3t+/DGuvD1nbMF7PyZ5AsTO7AGVOQTVJk+uCfHlCYSvwl4fGJHOaYzw== X-Received: by 2002:a05:600c:3413:b0:3df:eecc:de2b with SMTP id y19-20020a05600c341300b003dfeeccde2bmr7370749wmp.11.1677760376000; Thu, 02 Mar 2023 04:32:56 -0800 (PST) Received: from avogadro.local ([2001:b07:6468:f312:1c09:f536:3de6:228c]) by smtp.gmail.com with ESMTPSA id q6-20020a1ce906000000b003e0015c8618sm2796092wmc.6.2023.03.02.04.32.55 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 02 Mar 2023 04:32:55 -0800 (PST) From: Paolo Bonzini <pbonzini@redhat.com> To: qemu-devel@nongnu.org Cc: Joao Martins <joao.m.martins@oracle.com>, David Woodhouse <dwmw@amazon.co.uk>, Paul Durrant <paul@xen.org> Subject: [PULL 49/62] i386/xen: handle HVMOP_get_param Date: Thu, 2 Mar 2023 13:30:16 +0100 Message-Id: <20230302123029.153265-50-pbonzini@redhat.com> X-Mailer: git-send-email 2.39.1 In-Reply-To: <20230302123029.153265-1-pbonzini@redhat.com> References: <20230302123029.153265-1-pbonzini@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; 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Series |
[PULL,01/62] include: import Xen public headers to hw/xen/interface
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diff --git a/target/i386/kvm/xen-emu.c b/target/i386/kvm/xen-emu.c index 75bcf7b6306f..d2c88ef0d93f 100644 --- a/target/i386/kvm/xen-emu.c +++ b/target/i386/kvm/xen-emu.c @@ -765,6 +765,42 @@ out: return true; } +static bool handle_get_param(struct kvm_xen_exit *exit, X86CPU *cpu, + uint64_t arg) +{ + CPUState *cs = CPU(cpu); + struct xen_hvm_param hp; + int err = 0; + + /* No need for 32/64 compat handling */ + qemu_build_assert(sizeof(hp) == 16); + + if (kvm_copy_from_gva(cs, arg, &hp, sizeof(hp))) { + err = -EFAULT; + goto out; + } + + if (hp.domid != DOMID_SELF && hp.domid != xen_domid) { + err = -ESRCH; + goto out; + } + + switch (hp.index) { + case HVM_PARAM_STORE_PFN: + hp.value = XEN_SPECIAL_PFN(XENSTORE); + break; + default: + return false; + } + + if (kvm_copy_to_gva(cs, arg, &hp, sizeof(hp))) { + err = -EFAULT; + } +out: + exit->u.hcall.result = err; + return true; +} + static int kvm_xen_hcall_evtchn_upcall_vector(struct kvm_xen_exit *exit, X86CPU *cpu, uint64_t arg) { @@ -809,6 +845,9 @@ static bool kvm_xen_hcall_hvm_op(struct kvm_xen_exit *exit, X86CPU *cpu, case HVMOP_set_param: return handle_set_param(exit, cpu, arg); + case HVMOP_get_param: + return handle_get_param(exit, cpu, arg); + default: return false; }