Zhang, Xiantao wrote:
From 6b731c15afa8cec84f16408c421c286f1dd1b7d3 Mon Sep 17 00:00:00 2001From: Xiantao Zhang <xiantao.zhang@xxxxxxxxx> Date: Wed, 12 Mar 2008 13:45:40 +0800 Subject: [PATCH] KVM:IA64 : Add TLB virtulization support. vtlb.c includes tlb/VHPT virtulization. Signed-off-by: Anthony Xu <anthony.xu@xxxxxxxxx> Signed-off-by: Xiantao Zhang <xiantao.zhang@xxxxxxxxx>
Hi Xiantao, Just a clarification question on this one:
+void machine_tlb_purge(u64 va, u64 ps)
+{
+ ia64_ptcl(va, ps << 2);
+}
What is the purpose of machine_tlb_purge()? Is it supposed to do a global purge of the tlb on the host machine? If so, how does this macro differ from platform_global_tlb_purge()? I am mentioning this because it's very important to keep in mind that the regular tlb purging instructions are not functional on all ia64 platforms, which is why we have special implementations via the machine vector interface. Cheers, Jes -- To unsubscribe from this list: send the line "unsubscribe linux-ia64" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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