[Xen-changelog] [xen staging] x86/hvm: add domain_relinquish_resources() method

[patchbot@xxxxxxx]

commit 10a6e9cb5d282ffbc0bbd68c935a9c659173e3d9
Author:     Paul Durrant <pdurrant@xxxxxxxxxx>
AuthorDate: Fri Jan 24 15:30:58 2020 +0000
Commit:     Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
CommitDate: Sat Jan 25 18:43:32 2020 +0000

    x86/hvm: add domain_relinquish_resources() method
    
    There are two functions in hvm.c to deal with tear-down and a domain:
    hvm_domain_relinquish_resources() and hvm_domain_destroy(). However, only
    the latter has an associated method in 'hvm_funcs'. This patch adds
    a method for the former.
    
    A subsequent patch will define a VMX implementation.
    
    Signed-off-by: Paul Durrant <pdurrant@xxxxxxxxxx>
    Acked-by: Jan Beulich <jbeulich@xxxxxxxx>
---
 xen/arch/x86/hvm/hvm.c        | 3 +++
 xen/include/asm-x86/hvm/hvm.h | 1 +
 2 files changed, 4 insertions(+)

diff --git a/xen/arch/x86/hvm/hvm.c b/xen/arch/x86/hvm/hvm.c
index d899594888..6333ae6aba 100644
--- a/xen/arch/x86/hvm/hvm.c
+++ b/xen/arch/x86/hvm/hvm.c
@@ -716,6 +716,9 @@ int hvm_domain_initialise(struct domain *d)
 
 void hvm_domain_relinquish_resources(struct domain *d)
 {
+    if ( hvm_funcs.domain_relinquish_resources )
+        alternative_vcall(hvm_funcs.domain_relinquish_resources, d);
+
     if ( hvm_funcs.nhvm_domain_relinquish_resources )
         hvm_funcs.nhvm_domain_relinquish_resources(d);
 
diff --git a/xen/include/asm-x86/hvm/hvm.h b/xen/include/asm-x86/hvm/hvm.h
index 09793c12e9..9eab1d7493 100644
--- a/xen/include/asm-x86/hvm/hvm.h
+++ b/xen/include/asm-x86/hvm/hvm.h
@@ -107,6 +107,7 @@ struct hvm_function_table {
      * Initialise/destroy HVM domain/vcpu resources
      */
     int  (*domain_initialise)(struct domain *d);
+    void (*domain_relinquish_resources)(struct domain *d);
     void (*domain_destroy)(struct domain *d);
     int  (*vcpu_initialise)(struct vcpu *v);
     void (*vcpu_destroy)(struct vcpu *v);
--
generated by git-patchbot for /home/xen/git/xen.git#staging

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