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[PATCH] x86+Arm: drop (rename) __virt_to_maddr() / __maddr_to_virt()


  • To: "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
  • From: Jan Beulich <jbeulich@xxxxxxxx>
  • Date: Tue, 5 Mar 2024 09:33:25 +0100
  • Autocrypt: addr=jbeulich@xxxxxxxx; keydata= xsDiBFk3nEQRBADAEaSw6zC/EJkiwGPXbWtPxl2xCdSoeepS07jW8UgcHNurfHvUzogEq5xk hu507c3BarVjyWCJOylMNR98Yd8VqD9UfmX0Hb8/BrA+Hl6/DB/eqGptrf4BSRwcZQM32aZK 7Pj2XbGWIUrZrd70x1eAP9QE3P79Y2oLrsCgbZJfEwCgvz9JjGmQqQkRiTVzlZVCJYcyGGsD /0tbFCzD2h20ahe8rC1gbb3K3qk+LpBtvjBu1RY9drYk0NymiGbJWZgab6t1jM7sk2vuf0Py O9Hf9XBmK0uE9IgMaiCpc32XV9oASz6UJebwkX+zF2jG5I1BfnO9g7KlotcA/v5ClMjgo6Gl MDY4HxoSRu3i1cqqSDtVlt+AOVBJBACrZcnHAUSuCXBPy0jOlBhxPqRWv6ND4c9PH1xjQ3NP nxJuMBS8rnNg22uyfAgmBKNLpLgAGVRMZGaGoJObGf72s6TeIqKJo/LtggAS9qAUiuKVnygo 3wjfkS9A3DRO+SpU7JqWdsveeIQyeyEJ/8PTowmSQLakF+3fote9ybzd880fSmFuIEJldWxp Y2ggPGpiZXVsaWNoQHN1c2UuY29tPsJgBBMRAgAgBQJZN5xEAhsDBgsJCAcDAgQVAggDBBYC AwECHgECF4AACgkQoDSui/t3IH4J+wCfQ5jHdEjCRHj23O/5ttg9r9OIruwAn3103WUITZee e7Sbg12UgcQ5lv7SzsFNBFk3nEQQCACCuTjCjFOUdi5Nm244F+78kLghRcin/awv+IrTcIWF hUpSs1Y91iQQ7KItirz5uwCPlwejSJDQJLIS+QtJHaXDXeV6NI0Uef1hP20+y8qydDiVkv6l IreXjTb7DvksRgJNvCkWtYnlS3mYvQ9NzS9PhyALWbXnH6sIJd2O9lKS1Mrfq+y0IXCP10eS FFGg+Av3IQeFatkJAyju0PPthyTqxSI4lZYuJVPknzgaeuJv/2NccrPvmeDg6Coe7ZIeQ8Yj t0ARxu2xytAkkLCel1Lz1WLmwLstV30g80nkgZf/wr+/BXJW/oIvRlonUkxv+IbBM3dX2OV8 AmRv1ySWPTP7AAMFB/9PQK/VtlNUJvg8GXj9ootzrteGfVZVVT4XBJkfwBcpC/XcPzldjv+3 HYudvpdNK3lLujXeA5fLOH+Z/G9WBc5pFVSMocI71I8bT8lIAzreg0WvkWg5V2WZsUMlnDL9 mpwIGFhlbM3gfDMs7MPMu8YQRFVdUvtSpaAs8OFfGQ0ia3LGZcjA6Ik2+xcqscEJzNH+qh8V m5jjp28yZgaqTaRbg3M/+MTbMpicpZuqF4rnB0AQD12/3BNWDR6bmh+EkYSMcEIpQmBM51qM EKYTQGybRCjpnKHGOxG0rfFY1085mBDZCH5Kx0cl0HVJuQKC+dV2ZY5AqjcKwAxpE75MLFkr wkkEGBECAAkFAlk3nEQCGwwACgkQoDSui/t3IH7nnwCfcJWUDUFKdCsBH/E5d+0ZnMQi+G0A nAuWpQkjM1ASeQwSHEeAWPgskBQL
  • Cc: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Wei Liu <wl@xxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>, Julien Grall <julien@xxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Volodymyr Babchuk <volodymyr_babchuk@xxxxxxxx>, Bertrand Marquis <bertrand.marquis@xxxxxxx>, Michal Orzel <michal.orzel@xxxxxxx>, Oleksii Kurochko <oleksii.kurochko@xxxxxxxxx>
  • Delivery-date: Tue, 05 Mar 2024 08:33:35 +0000
  • List-id: Xen developer discussion <xen-devel.lists.xenproject.org>

There's no use of them anymore except in the definitions of the non-
underscore-prefixed aliases. Rename the inline functions, adjust the
virt_to_maddr() #define-e, and purge the (x86-only) maddr_to_virt() one,
thus eliminating a bogus cast which would have allowed the passing of a
pointer type variable into maddr_to_virt() to go silently.

Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>

--- a/xen/arch/arm/include/asm/mm.h
+++ b/xen/arch/arm/include/asm/mm.h
@@ -256,12 +256,12 @@ static inline void __iomem *ioremap_wc(p
 /* Page-align address and convert to frame number format */
 #define paddr_to_pfn_aligned(paddr)    paddr_to_pfn(PAGE_ALIGN(paddr))
 
-static inline paddr_t __virt_to_maddr(vaddr_t va)
+static inline paddr_t virt_to_maddr(vaddr_t va)
 {
     uint64_t par = va_to_par(va);
     return (par & PADDR_MASK & PAGE_MASK) | (va & ~PAGE_MASK);
 }
-#define virt_to_maddr(va)   __virt_to_maddr((vaddr_t)(va))
+#define virt_to_maddr(va) virt_to_maddr((vaddr_t)(va))
 
 #ifdef CONFIG_ARM_32
 /**
--- a/xen/arch/x86/hvm/nestedhvm.c
+++ b/xen/arch/x86/hvm/nestedhvm.c
@@ -125,7 +125,7 @@ static int __init cf_check nestedhvm_set
     /* shadow_io_bitmaps can't be declared static because
      *   they must fulfill hw requirements (page aligned section)
      *   and doing so triggers the ASSERT(va >= XEN_VIRT_START)
-     *   in __virt_to_maddr()
+     *   in virt_to_maddr()
      *
      * So as a compromise pre-allocate them when xen boots.
      * This function must be called from within start_xen() when
--- a/xen/arch/x86/include/asm/page.h
+++ b/xen/arch/x86/include/asm/page.h
@@ -269,8 +269,6 @@ void scrub_page_cold(void *);
 #define mfn_valid(mfn)      __mfn_valid(mfn_x(mfn))
 #define virt_to_mfn(va)     __virt_to_mfn(va)
 #define mfn_to_virt(mfn)    __mfn_to_virt(mfn)
-#define virt_to_maddr(va)   __virt_to_maddr((unsigned long)(va))
-#define maddr_to_virt(ma)   __maddr_to_virt((unsigned long)(ma))
 #define maddr_to_page(ma)   __maddr_to_page(ma)
 #define page_to_maddr(pg)   __page_to_maddr(pg)
 #define virt_to_page(va)    __virt_to_page(va)
--- a/xen/arch/x86/include/asm/x86_64/page.h
+++ b/xen/arch/x86/include/asm/x86_64/page.h
@@ -34,7 +34,7 @@ static inline unsigned long canonicalise
 #define pdx_to_virt(pdx) ((void *)(DIRECTMAP_VIRT_START + \
                                    ((unsigned long)(pdx) << PAGE_SHIFT)))
 
-static inline unsigned long __virt_to_maddr(unsigned long va)
+static inline unsigned long virt_to_maddr(unsigned long va)
 {
     ASSERT(va < DIRECTMAP_VIRT_END);
     if ( va >= DIRECTMAP_VIRT_START )
@@ -47,8 +47,9 @@ static inline unsigned long __virt_to_ma
 
     return xen_phys_start + va - XEN_VIRT_START;
 }
+#define virt_to_maddr(va) virt_to_maddr((unsigned long)(va))
 
-static inline void *__maddr_to_virt(unsigned long ma)
+static inline void *maddr_to_virt(unsigned long ma)
 {
     /* Offset in the direct map, accounting for pdx compression */
     unsigned long va_offset = maddr_to_directmapoff(ma);



 


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